Construction method for monitoring unit of turnout broken rail monitoring device

Abstract

The invention provides a construction method for a monitoring unit of a turnout broken rail monitoring device, which is characterized by comprising the following steps of: 1, performing grinding pretreatment on the surface of a turnout; 2, cleaning the surface of the turnout; step 3, pasting the wire adhesive tape and the protective adhesive tape; 4, conducting wire adhesive tape reliability testing, wherein after conducting wire pasting is completed, circuit on-off testing and rail piece insulation testing are conducted; step 5, circuit connection; and step 6, testing the reliability of the monitoring unit. According to the method, automatic pasting equipment is designed, meanwhile, a monitoring unit construction method combining the service status and the actual site condition of the existing turnout steel rail piece is designed, and personnel, materials and time needed by all links in the construction process of rail surface rust removal and cleaning, adhesive tape pasting, adhesive tape reliability testing and the like are accurately calculated; therefore, the purpose of mounting the monitoring unit with high efficiency and high quality is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of railway track detection, and relates to a construction method for a monitoring unit of a turnout broken rail monitoring device. Background Art

[0002] Turnouts are the weak link of railway lines and the key to the stability and safety of train operation. At present, there are five real-time broken rail monitoring technologies at home and abroad, including real-time broken rail monitoring based on track circuit principles, optical fiber real-time broken rail monitoring, conductive coating real-time broken rail monitoring, ultrasonic real-time broken rail monitoring, and acoustic emission real-time broken rail monitoring. However, due to the many research directions and various technologies involved in turnout broken rail monitoring at home and abroad, there are few turnout broken rail monitoring devices that can be actually used due to various factors such as false alarm rate, functional stability, and equipment safety.

[0003] The monitoring units in the existing broken rail monitoring devices in China all have construction difficulties or problems to varying degrees. For example, the installation and maintenance of optical fiber as a monitoring unit is difficult, and it is sensitive to environmental requirements. In addition, optical fiber has poor ductility and is easy to break. It is easily damaged during construction and difficult to install. Therefore, the broken rail monitoring device with optical fiber as the monitoring unit has problems such as difficult construction, difficult maintenance, and easy breakage due to excessive external force vibration or bending, causing abnormal alarms. For example, when the conductive coating is used as a monitoring unit, the practicality and scalability of this technology on site are poor due to the complex structure of the turnout, the difficulty of installation, and the easy damage of the conductive coating by external forces and foreign objects. The ultrasonic and acoustic emission monitoring devices use acoustic signals as monitoring units. Due to the limitations of the actual conditions of the turnout rails and lines, it is impossible to accurately monitor the broken rails, and there are problems such as false alarms and missed alarms. If the construction method of the monitoring unit based on the wire tape is not designed reasonably in the actual installation, there will also be problems such as difficult installation, poor installation effect, and low reliability.

[0004] The installation of monitoring systems on existing turnout rails places very strict requirements on construction time. This is because the installation of the monitoring unit needs to be completed within a specific window point. The window time limit for general railways is very limited, usually around 120 minutes, and sometimes it is set at night. At the same time, outdoor work means that construction may encounter severe weather such as high temperatures in summer, low temperatures in winter, or rain and snow. Under these construction conditions, the construction method must be reasonably designed, efficient, economical and convenient, which is also a difficulty in installing the monitoring system.

[0005] Therefore, based on the deficiencies of the above-mentioned technologies, the present invention proposes a construction method for a monitoring unit of a turnout broken rail monitoring device, by designing an automatic pasting device and at the same time designing a monitoring unit construction method that combines the service status of existing turnout rail parts and actual site conditions. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention proposes a construction method for a monitoring unit of a turnout broken rail monitoring device.

[0007] A construction method for a monitoring unit of a turnout broken rail monitoring device, comprising:

[0008] Step 1. Pretreatment of turnout surface grinding: For areas with severe sludge, use a sludge shovel to remove the sludge on the surface of the rail;

[0009] Step 2. Cleaning of turnout surface: After the grinding pretreatment is completed, use a lithium battery cleaning water gun to spray water on the pretreated surface to remove the dust and dirt remaining on the surface after grinding;

[0010] Step 3. Pasting of conductor tape and protective tape: using automatic pasting equipment to complete the pasting of conductor tape and protective tape;

[0011] Step 4. Wire tape reliability test: After the wire is pasted, conduct circuit continuity test and rail insulation test;

[0012] Step 5. Circuit connection: After the protective tape is pasted, connect each section of the wire tape on the rail by soldering to form a complete rail monitoring unit;

[0013] Step 6. Monitoring unit reliability test: After the monitoring unit is installed, repeat the contents of step 4 to test the monitoring unit circuit continuity and rail insulation of the entire rail to ensure that the monitoring unit is installed stably and reliably.

[0014] Wherein, in the step 3, the automatic pasting equipment includes an automatic traveling unit, an automatic glue injection unit and an automatic pasting unit, wherein the automatic glue injection unit is arranged on the upper part of the automatic traveling unit, and the automatic glue injection unit is arranged on one side of the automatic traveling unit.

[0015] The automatic running unit is mainly composed of a control cabinet, a running device and a battery. A driving motor is arranged in the control cabinet, and the running device is driven by the motor to run on the rail. The battery provides power for the driving motor. The running speed and running time can be adjusted by operating the control panel on the control cabinet to control the length of the paste.

[0016] The automatic glue injection unit is mainly composed of an air pump, a pressure control system and a glue injection device. The air pump is powered by a battery, and the air pump provides pressure for the glue injection device. The pressure control system controls the glue outflow speed.

[0017] The glue injection device is provided with a glue applicator. When the glue outflow speed and the contact pressure between the glue applicator and the rail surface are set, the oily original glue can be evenly and straightly applied to the adhesive zone of the rail surface as the automatic adhesive device is started.

[0018] The automatic pasting unit comprises a tape pasting device, in which the lower end of the height telescopic adjustment rod is connected to the tape paster, and a given pressure value is set by a pressure control system to control the pressure when the tape paster is pasted to the rail surface. The tape paster adjusts the position of the tape paster in contact with the rail surface by the height telescopic adjustment rod. Two reels are arranged before and after the tape paster to place the conductor tape and the protective tape respectively, wherein the protective tape adhesive is arranged in parallel with the conductor tape adhesive.

[0019] Among them, the steps of the automatic pasting equipment in step 3 to complete the pasting of the conductor tape and the protective tape are as follows: turn on the power of the control cabinet, fill the glue injection device with oily original glue for use, set the running speed and running time on the control cabinet panel, set the pressure values ​​of the glue injection, glue applicator and tape applicator on the pressure control system respectively, adjust the telescopic rod by operating the button on the pressure control system, determine the pasting position, and after all the parameters of the equipment are set, press the start button on the control cabinet to start the equipment, and the equipment will automatically complete the process of rail surface gluing, conductor tape and protective tape pasting.

[0020] Among them, a spacing distance of 0.5m is set between the tape applicator and the wire tape adhesive, and a spacing distance of 0.2m is set between the wire tape applicator and the protective tape applicator. During the movement of the equipment, the tape applicator, the wire tape adhesive and the protective tape applicator work simultaneously to complete the tape pasting work at one time.

[0021] Among them, in step 4, the circuit continuity test: after the wire is pasted, one end of the wire is closed, and at the other end of the wire, the red and black ends of the multimeter are used to connect the two leads of the wire, and the resistance of the wire is detected; the rail insulation test: use the red and black ends of the multimeter, one end is connected to the lead of the wire, and the other end contacts the surface of the rail with a metallic luster.

[0022] Among them, in step 5, after the protective tape is pasted, each section of the wire tape on the rail is connected by soldering. When the wire tape encounters an obstacle and needs to be turned or the pasting position is changed, the wire tape needs to be cut off. When connecting two sections of the wire tape, there needs to be partial overlap to achieve complete coverage and avoid missing monitoring points; the overlapping wires are connected by copper leads to ensure uninterrupted monitoring of the entire length. Use a soldering iron or a two-hole connector to connect the leads at both ends of the wire tape and wrap them with insulating tape for insulation protection, so that the monitoring unit can achieve a flexible function and become a complete rail monitoring unit.

[0023] The present invention designs an automatic pasting device and a monitoring unit construction method that combines the service status of existing turnout rail parts and actual site conditions. By accurately calculating the personnel, materials and time required for each link in the construction process such as rail surface rust removal and cleaning, tape pasting, and tape reliability testing, the purpose of completing the installation of the monitoring unit with high efficiency and high quality is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The diagram is a schematic diagram of the operation steps of the construction method for the monitoring unit of the turnout broken rail monitoring device.

[0025] Figure 2 This is an overall schematic diagram of the automatic pasting equipment.

[0026] Figure 3 This is a schematic diagram of the automatic pasting equipment components.

[0027] Figure 4 Schematic diagram of the tape sticking device. DETAILED DESCRIPTION

[0028] A construction method for a monitoring unit of a switch broken rail monitoring device provided by the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Attached Figure 1-4 As shown, a construction method for a monitoring unit of a turnout broken rail monitoring device includes:

[0030] Step 1. Pretreatment of turnout surface grinding: For areas with severe sludge, use a sludge shovel to remove the sludge on the surface of the rail;

[0031] Step 2. Cleaning of turnout surface: After the grinding pretreatment is completed, use a lithium battery cleaning water gun to spray water on the pretreated surface to remove the dust and dirt remaining on the surface after grinding;

[0032] Step 3. Pasting of conductor tape and protective tape: using automatic pasting equipment to complete the pasting of conductor tape and protective tape;

[0033] Step 4. Wire tape reliability test: After the wire is pasted, conduct circuit continuity test and rail insulation test;

[0034] Step 5. Circuit connection: After the protective tape is pasted, connect each section of the wire tape on the rail by soldering to form a complete rail monitoring unit;

[0035] Step 6. Monitoring unit reliability test: After the monitoring unit is installed, repeat the contents of step 4 to test the monitoring unit circuit continuity and rail insulation of the entire rail to ensure that the monitoring unit is installed stably and reliably.

[0036] In the step 3, the automatic pasting equipment includes an automatic traveling unit, an automatic glue injection unit and an automatic pasting unit, wherein the automatic glue injection unit is arranged on the upper part of the automatic traveling unit, and the automatic glue injection unit is arranged on one side of the automatic traveling unit.

[0037] The automatic running unit is mainly composed of a control cabinet 1, a running device 2 and a battery 3. A driving motor is arranged in the control cabinet 1, and the running device 2 is driven by the motor to run on the rail. The battery 3 provides power for the driving motor. The running speed and running time can be adjusted by operating the control panel on the control cabinet to control the length of the paste.

[0038] The automatic glue injection unit is mainly composed of an air pump 4, a pressure control system 5 and a glue injection device 6. The air pump 4 is powered by a battery 3, and the air pump 4 provides pressure for the glue injection device. The pressure control system 5 controls the glue outflow speed.

[0039] The glue injection device 6 is provided with a glue applicator 61. When the glue outflow speed and the contact pressure between the glue applicator 61 and the rail surface are set, the oily original glue can be evenly and straightly applied to the adhesive zone of the rail surface as the automatic adhesive device is started.

[0040] The automatic pasting unit includes a tape pasting device 7, in which a lower end of a height telescopic adjustment rod 74 is connected to a tape paster 71, and a given pressure value is set by a pressure control system to control the pressure when the tape paster 71 is pasted to the rail surface. The tape paster 71 adjusts the position of the tape paster 71 in contact with the rail surface through the height telescopic adjustment rod 74. Two reels are arranged before and after the tape paster, on which a conductor tape adhesive 72 and a protective tape adhesive 73 are placed respectively, wherein the protective tape adhesive 73 is arranged parallel to the conductor tape adhesive 72.

[0041] The steps of the automatic pasting device in step 3 to complete the pasting of the conductor tape and the protective tape are as follows: turn on the power of the control cabinet, fill the glue injection device 6 with oily original glue for use, set the running speed and running time on the control cabinet panel, set the pressure values ​​of the glue injection, glue applicator and tape applicator on the pressure control system respectively, adjust the telescopic rod by operating the button on the pressure control system, determine the pasting position, and after all the parameters of the equipment are set, press the start button on the control cabinet to start the equipment, and the equipment will automatically complete the process of rail surface glue coating, conductor tape and protective tape pasting.

[0042] A 0.5m interval is set between the tape applicator 71 and the wire tape adhesive 72, and a 0.2m interval is set between the wire tape applicator 72 and the protective tape applicator 73. During the movement of the equipment, the tape applicator 71, the wire tape adhesive 72 and the protective tape applicator 73 work simultaneously to complete the tape pasting work at one time.

[0043] In step 4, the circuit continuity test: after the wire is pasted, one end of the wire is closed, and at the other end of the wire, the red and black ends of the multimeter are connected to the two leads of the wire to detect the resistance of the wire; the wire resistivity is about 3Ω / M (double strands), and the wire resistance can be calculated according to the length. For example, if the total length of the wire is 10 meters, the resistance should be 30Ω. If the resistance value measured by the multimeter is 30Ω, it indicates that the entire length of the wire is in a continuous state; if the measured wire resistance is infinite or the resistance value is in the megohm level, the wire is open, indicating that there is a break in the middle of the wire.

[0044] Rail insulation test: Use the red and black terminals of a multimeter, connect one end to the lead of the wire, and the other end to the surface of the rail with a metallic luster. If the resistance is infinite (the multimeter shows a circuit break) or the resistance is greater than 1000Ω, it indicates that the insulation between the wire and the rail is good; if the multimeter shows a certain resistance (unit to hundred), it indicates that the insulation between the wire and the rail is damaged.

[0045] In step 5, after the protective tape is pasted, each section of the wire tape on the rail is connected by soldering. When the wire tape encounters an obstacle and needs to be turned or the pasting position is changed, the wire tape needs to be cut off. When connecting two sections of the wire tape, there needs to be partial overlap to achieve complete coverage and avoid missing monitoring points; the overlapping wires are connected by copper leads to ensure uninterrupted monitoring of the entire length. Use a soldering iron or a two-hole connector to connect the leads at both ends of the wire tape and wrap them with insulating tape for insulation protection, so that the monitoring unit can achieve a flexible function and become a complete rail monitoring unit.

[0046] The present invention adopts the most practical and economical construction means and methods, and realizes the rapid and effective installation of the monitoring unit based on the conductor tape on the existing turnout rail under the restrictive conditions of various complex situations on the actual site (narrow space, poor track surface conditions, limited skylight time, etc.). The construction method is low-cost, simple and has high installation efficiency. The method can realize the automatic pasting process of the conductor tape, which is used to save manpower and maintain the stability of the tape pasting process. It has the characteristics of repeatability, high operability, high implementation efficiency and low cost.

[0047] The reliability test in the construction method can ensure that the monitoring unit can achieve a long-term stable monitoring effect. The circuit connection in the construction method can enable the wire tape in the monitoring unit to achieve the function of flexibly turning around obstacles.

[0048] Finally, it should be noted that the above embodiments are only used to describe the technical solution of the present invention rather than to limit the technical method. The present invention can be extended to other modifications, changes, applications and embodiments in application, and therefore it is believed that all such modifications, changes, applications and embodiments are within the spirit and teaching scope of the present invention.

Claims

1. A construction method for a monitoring unit of a turnout broken rail monitoring device, characterized in that: Methods include Step 1. Pretreatment of turnout surface grinding: For areas with severe sludge, use a sludge shovel to remove the sludge on the surface of the rail; Step 2. Cleaning of turnout surface: After the grinding pretreatment is completed, use a lithium battery cleaning water gun to spray water on the pretreated surface to remove the dust and dirt remaining on the surface after grinding; Step 3. Pasting of conductor tape and protective tape: using automatic pasting equipment to complete the pasting of conductor tape and protective tape; Step 4. Wire tape reliability test: After the wire is pasted, conduct circuit continuity test and rail insulation test; Step 5. Circuit connection: After the protective tape is pasted, connect each section of the wire tape on the rail by soldering to form a complete rail monitoring unit; Step 6. Monitoring unit reliability test: After the monitoring unit is installed, repeat the contents of step 4 to test the monitoring unit circuit continuity and rail insulation of the entire rail to ensure that the monitoring unit is installed stably and reliably.

2. A construction method for a monitoring unit of a turnout broken rail monitoring device according to claim 1, characterized in that: In the step 3, the automatic pasting equipment includes an automatic traveling unit, an automatic glue injection unit and an automatic pasting unit, wherein the automatic glue injection unit is arranged on the upper part of the automatic traveling unit, and the automatic glue injection unit is arranged on one side of the automatic traveling unit.

3. The automatic pasting device according to claim 2, characterized in that: The automatic running unit is mainly composed of a control cabinet (1), a running device (2) and a storage battery (3). A driving motor is arranged in the control cabinet (1), and the running device (2) is driven by the motor to run on the rail. The storage battery (3) provides power for the driving motor. The running speed and running time can be adjusted by operating the control panel on the control cabinet to control the length of the pasting. The automatic glue injection unit is mainly composed of an air pump (4), a pressure control system (5) and a glue injection device (6). The air pump (4) is powered by a storage battery (3). The air pump (4) provides pressure for the glue injection device. The pressure control system (5) controls the glue outflow speed. The glue injection device (6) is provided with a glue applicator (61). When the glue outflow speed and the contact pressure between the glue applicator (61) and the rail surface are set, the oily original glue can be evenly and straightly applied to the tape adhesive area of ​​the rail surface as the automatic adhesive device is started. The automatic pasting unit comprises a tape pasting device (7), wherein the lower end of a height telescopic adjustment rod (74) is connected to a tape paster (71), a given pressure value is set by a pressure control system to control the pressure when the tape paster (71) is pasted to the rail surface, the tape paster (71) is adjusted to a position where the tape paster (71) is pasted to the rail surface by the height telescopic adjustment rod (74), two reels are arranged before and after the tape paster, respectively placing a conductor tape adhesive (72) and a protective tape adhesive (73), wherein the protective tape adhesive (73) is arranged in parallel with the conductor tape adhesive (72).

4. A construction method for a monitoring unit of a turnout broken rail monitoring device according to claim 1 or 2, characterized in that: The steps of the automatic pasting device in step 3 to complete the pasting of the conductor tape and the protective tape are as follows: turn on the power of the control cabinet, fill the glue injection device (6) with oily original glue for use, set the running speed and running time on the control cabinet panel, set the pressure values ​​of the glue injection, glue applicator and tape applicator on the pressure control system, adjust the telescopic rod by operating the button on the pressure control system, determine the pasting position, and after all the parameters of the device are set, press the start button on the control cabinet to start the device, and the device will automatically complete the process of rail surface glue coating, conductor tape and protective tape pasting.

5. The automatic pasting device according to claim 3, characterized in that: A 0.5 m spacing distance is set between the tape paster (71) and the conductor tape adhesive (72), and a 0.2 m spacing distance is set between the conductor tape paster (72) and the protective tape paster (73). During the running process of the equipment, the tape paster (71), the conductor tape adhesive (72) and the protective tape paster (73) work simultaneously, completing the tape pasting work at one time.

6. A construction method for a monitoring unit of a turnout broken rail monitoring device according to claim 1, characterized in that: In step 4, the circuit continuity test: after the wire is pasted, one end of the wire is closed, and at the other end of the wire, the red and black ends of the multimeter are used to connect the two leads of the wire, and the resistance of the wire is detected; the rail insulation test: use the red and black ends of the multimeter, one end is connected to the lead of the wire, and the other end contacts the surface of the rail with a metallic luster.

7. A construction method for a monitoring unit of a turnout broken rail monitoring device according to claim 1, characterized in that: In step 5, after the protective tape is pasted, each section of the wire tape on the rail is connected by soldering. When the wire tape encounters an obstacle and needs to be turned or the pasting position is changed, the wire tape needs to be cut off. When connecting two sections of the wire tape, there needs to be partial overlap to achieve complete coverage and avoid missing monitoring points; the overlapping wires are connected by copper leads to ensure uninterrupted monitoring of the entire length. Use a soldering iron or a two-hole connector to connect the leads at both ends of the wire tape and wrap them with insulating tape for insulation protection, so that the monitoring unit can achieve a flexible function and become a complete rail monitoring unit.

Images