CN111220849A - Resistance monitoring device under rail potential - Google Patents
Resistance monitoring device under rail potential Download PDFInfo
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- CN111220849A CN111220849A CN201911126270.6A CN201911126270A CN111220849A CN 111220849 A CN111220849 A CN 111220849A CN 201911126270 A CN201911126270 A CN 201911126270A CN 111220849 A CN111220849 A CN 111220849A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
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Abstract
A resistance monitoring device under a rail potential comprises a high internal resistance potentiometer; one end of the high internal resistance potentiometer is connected to a rail grounding clamp through a measuring lead; the steel rail grounding wire clamp comprises an inflation box, wherein a holding handle is fixedly connected to the middle position of the bottom wall of the inflation box, a booster motor is arranged on one side of the bottom wall of the inflation box, and a positioning rod is fixedly connected between the booster motor and the inflation box. The utility model discloses a pneumatic control device, including guide frame, booster motor, movable plate, guide frame, guide motor, air inflation box, guide frame, movable plate and tight lead screw that rises is assembling between movable plate and guide frame. The defects that in the prior art, for some short measuring leads, the end parts of the measuring leads are difficult to be clamped efficiently, the connection of the measuring leads is not facilitated, and the connection of the measuring leads is not facilitated due to the fact that the rigidity of the measuring leads is increased if the temperature is not high are effectively overcome by combining other structures and methods.
Description
Technical Field
The invention relates to the technical field of rail potential, belongs to the technical field of resistance monitoring, and particularly relates to a resistance monitoring device under rail potential.
Background
Because the steel rail is directly laid on the ballast and has no good insulation with the ground, part of traction backflow is discharged into the ground near the current taking point of the locomotive, enters the steel rail again near the traction substation or the backflow point, returns to the grounding end of a power supply, and generates obviously raised steel rail-to-ground potential near the current receiving point and the backflow point of the locomotive.
At present, in order to monitor the voltage of a steel rail to earth, a steel rail potential and steel rail current testing system is generally applied, and the system comprises a high internal resistance potentiometer; one end of the high internal resistance potentiometer is connected to a steel rail grounding wire clamp through a measuring lead, the existing steel rail grounding wire clamp is difficult to independently connect a plurality of measuring leads, in addition, for some short measuring leads, the measuring leads need to be additionally arranged, at the moment, the measuring leads need to be connected, the end parts of the measuring leads are difficult to be efficiently clamped, and therefore the connection of the measuring leads is not facilitated, and in addition, if the temperature point is not high, the rigidity of the measuring leads is increased, and therefore the connection is not facilitated.
Disclosure of Invention
In order to solve the problems, the invention provides a resistance monitoring device under a rail potential, which effectively overcomes the defects that in the prior art, for some short measuring leads, the end parts of the measuring leads are difficult to be clamped efficiently, the connection of the measuring leads is not facilitated, and the rigidity of the measuring leads is increased if the temperature point is not high, so that the connection is not facilitated.
In order to overcome the defects in the prior art, the invention provides a solution of a resistance monitoring device under a rail potential, which comprises the following specific steps:
a resistance monitoring device under a rail potential comprises a high internal resistance potentiometer; one end of the high internal resistance potentiometer is connected to a rail grounding clamp through a measuring lead;
the rail grounding wire clamp comprises an inflation box 25, a holding handle 10 is fixedly connected to the middle of the bottom wall of the inflation box 25, a booster motor 9 is arranged on one side of the bottom wall of the inflation box 25, and a positioning rod 6 is fixedly connected between the booster motor 9 and the inflation box 25.
The utility model discloses a pneumatic control device, including pressure boost motor 9, guide frame 26, movable plate 6, tight lead screw 5 is being assembled between movable plate 6 and guide frame 26, fluid channel 3 is being connected firmly at the top of movable plate 6, hollow rubber tube 2 is being connected firmly to fluid channel 3's wall, guide channel 4 is being connected firmly between fluid channel 3 and gas charging box 25.
The lead screw 22 is welded to the front wall of the inflation box 25 at equal intervals, the cylindrical connecting bar 23 is sleeved on the wall surface of the lead screw 22, the nut 21 is sleeved on the outer wall surface of the lead screw 22, and the electric heating rods 24 are assembled on the wall surface of the cylindrical connecting bar 23 at equal intervals.
The moving plate 6 is movably connected with the guide frame 26.
The guide channels 4 are of plastic material and communicate with the fluid channels 3 and the inflatable chambers 25, respectively.
The lead screw 22 is in threaded connection with the nut 21.
The electric heating rod 24 is a hollow structure and is wound with an electric heating bar inside.
The guide channel 4 is communicated with the hollow rubber cylinder 2.
When the measuring lead is connected to the rail grounding clamp, firstly, a worker holds the holding handle 10, the rail grounding clamp is placed beside the measuring lead, then, the tensioning screw rod 5 is adjusted, the interval between the moving plates 6 is shortened, the interval between the fluid channels 3 is synchronously shortened, the booster motor 9 is communicated with the surrounding power supply of the electric heating rod 24, when the length of the measuring lead is not long enough, the measuring lead needs to be connected, the measuring lead is placed between the hollow rubber cylinders 2, then, the booster motor 9 is started, the booster motor 9 supplies air to the inflation box 25, so that the air is supplied to the hollow rubber cylinders 2 through the guide channels 4, the hollow rubber cylinders 2 are inflated, the measuring lead is clamped firmly by the hollow rubber cylinders 2, then, the end parts of the clamped measuring lead are connected, and during the execution period, if the temperature is not high, the electric heating rod 24 is electrified, the temperature is increased beside the measuring lead, the rigidity of the measuring lead is reduced, the measuring lead is prevented from being too rigid, the columnar connecting strip 23 can be placed on different lead screws 22 through adjustment of the screw 21, the position of the electric heating rod 24 is adjusted, the temperature is increased on different positions, and connection of the measuring lead is achieved.
The invention has the beneficial effects that:
the invention can adjust the hollow rubber cylinder by introducing the booster motor, is beneficial to firmly clamping the measuring lead between the fluid channels, is beneficial to connecting the end parts of the measuring lead, is beneficial to operating the position of the moving plate by adjusting the tension screw rod, is beneficial to adjusting the position of the fluid channel, is beneficial to firmly clamping the measuring lead, is beneficial to efficiently connecting the measuring lead by firmly clamping the measuring lead, is beneficial to heating the measuring lead by arranging the electric heating rod, is beneficial to reducing the rigidity of the measuring lead, is beneficial to connecting the measuring lead, and is beneficial to adjusting the position of the columnar connecting strip by arranging the plurality of screw rods.
Drawings
Fig. 1 is a lower structural view of a rail grounding clip of the present invention.
Fig. 2 is an upper structural view of the rail grounding clip of the present invention.
Detailed description of the preferred embodiment
The invention will be further described with reference to the following figures and examples.
Example 1:
as shown in fig. 1-2, the resistance monitoring device at rail potential comprises a steel rail potential and steel rail current testing system, which comprises a steel rail potential acquisition module and a steel rail current acquisition module; the steel rail potential acquisition module comprises a high internal resistance potentiometer, a measurement lead and a steel chisel electrode; the steel rail current acquisition module comprises a pincerlike steel rail current acquisition module. In the rail potential acquisition module, one end of the high internal resistance potentiometer is connected to a rail grounding clamp through a measuring lead, and the other end of the high internal resistance potentiometer is connected to a steel chisel electrode inserted into the ground through the measuring lead;
the rail grounding wire clamp comprises an inflation box 25, a holding handle 10 is fixedly connected to the middle of the bottom wall of the inflation box 25, a booster motor 9 is arranged on one side of the bottom wall of the inflation box 25, and a positioning rod 6 is fixedly connected between the booster motor 9 and the inflation box 25.
The utility model discloses a pneumatic control device, including pressure boost motor 9, guide frame 26, movable plate 6, tight lead screw 5 is being assembled between movable plate 6 and guide frame 26, fluid channel 3 is being connected firmly at the top of movable plate 6, hollow rubber tube 2 is being connected firmly to fluid channel 3's wall, guide channel 4 is being connected firmly between fluid channel 3 and gas charging box 25.
The lead screw 22 is welded to the front wall of the inflation box 25 at equal intervals, the cylindrical connecting bar 23 is sleeved on the wall surface of the lead screw 22, the nut 21 is sleeved on the outer wall surface of the lead screw 22, and the electric heating rods 24 are assembled on the wall surface of the cylindrical connecting bar 23 at equal intervals.
The moving plate 6 is movably connected with the guide frame 26.
The guide channels 4 are of plastic material and communicate with the fluid channels 3 and the inflatable chambers 25, respectively.
The lead screw 22 is in threaded connection with the nut 21.
The electric heating rod 24 is a hollow structure and is wound with an electric heating bar inside.
The guide channel 4 is communicated with the hollow rubber cylinder 2.
Example 2:
as shown in fig. 1-2, the resistance monitoring device at rail potential comprises a steel rail potential and steel rail current testing system, which comprises a steel rail potential acquisition module and a steel rail current acquisition module; the steel rail potential acquisition module comprises a high internal resistance potentiometer, a measurement lead and a steel chisel electrode; the steel rail current acquisition module comprises a pincerlike steel rail current acquisition module. In the rail potential acquisition module, one end of the high internal resistance potentiometer is connected to a rail grounding clamp through a measuring lead, and the other end of the high internal resistance potentiometer is connected to a steel chisel electrode inserted into the ground through the measuring lead;
the rail grounding wire clamp comprises an inflation box 25, a holding handle 10 is fixedly connected to the middle of the bottom wall of the inflation box 25, a booster motor 9 is arranged on one side of the bottom wall of the inflation box 25, and a positioning rod 6 is fixedly connected between the booster motor 9 and the inflation box 25.
The utility model discloses a pneumatic control device, including pressure boost motor 9, guide frame 26, movable plate 6, tight lead screw 5 is being assembled between movable plate 6 and guide frame 26, fluid channel 3 is being connected firmly at the top of movable plate 6, hollow rubber tube 2 is being connected firmly to fluid channel 3's wall, guide channel 4 is being connected firmly between fluid channel 3 and gas charging box 25.
The lead screw 22 is welded to the front wall of the inflation box 25 at equal intervals, the cylindrical connecting bar 23 is sleeved on the wall surface of the lead screw 22, the nut 21 is sleeved on the outer wall surface of the lead screw 22, and the electric heating rods 24 are assembled on the wall surface of the cylindrical connecting bar 23 at equal intervals.
The moving plate 6 is movably connected with the guide frame 26.
The guide channels 4 are of plastic material and communicate with the fluid channels 3 and the inflatable chambers 25, respectively.
The lead screw 22 is in threaded connection with the nut 21.
The electric heating rod 24 is a hollow structure and is wound with an electric heating bar inside.
The guide channel 4 is communicated with the hollow rubber cylinder 2.
When the measuring lead is connected to the rail grounding clamp, firstly, a worker holds the holding handle 10, the rail grounding clamp is placed beside the measuring lead, then, the tensioning screw rod 5 is adjusted, the interval between the moving plates 6 is shortened, the interval between the fluid channels 3 is synchronously shortened, the booster motor 9 is communicated with the surrounding power supply of the electric heating rod 24, when the length of the measuring lead is not long enough, the measuring lead needs to be connected, the measuring lead is placed between the hollow rubber cylinders 2, then, the booster motor 9 is started, the booster motor 9 supplies air to the inflation box 25, so that the air is supplied to the hollow rubber cylinders 2 through the guide channels 4, the hollow rubber cylinders 2 are inflated, the measuring lead is clamped firmly by the hollow rubber cylinders 2, then, the end parts of the clamped measuring lead are connected, and during the execution period, if the temperature is not high, the electric heating rod 24 is electrified, the temperature is increased beside the measuring lead, the rigidity of the measuring lead is reduced, the measuring lead is prevented from being too rigid, the columnar connecting strip 23 can be placed on different lead screws 22 through adjustment of the screw 21, the position of the electric heating rod 24 is adjusted, the temperature is increased on different positions, and connection of the measuring lead is achieved.
In addition, in practical application, the steel rail current acquisition module is electrically connected with the input end of the single chip microcomputer, the single chip microcomputer is connected with the local area network, so that current information acquired by the steel rail current acquisition module can be sent to the single chip microcomputer, the single chip microcomputers are connected with one router of the local area network, so that the single chip microcomputers can transmit the current information to a monitoring platform in the local area network through the router of the local area network for remote monitoring, and the current information transmitted by each single chip microcomputer is increased; at present, the current information transmission mode is wireless transmission, that is, after one single chip microcomputer transmits the current information, the latter single chip microcomputer can transmit the current information to the monitoring platform, if the length of the current information transmitted by the single chip microcomputer is not small, the other single chip microcomputers listed behind the single chip microcomputer can only wait in sequence, the current information transmission performance is poor, the real-time performance is poor, and the requirement of the single chip microcomputer for transmitting the current information is not met.
Through improvement, a plurality of single-chip microcomputers are connected to a router of a local area network, and the router of the local area network is connected to a monitoring platform in the local area network. The monitoring platform can be a computer.
Resistance monitoring devices under the rail potential still includes:
therefore, current information acquired by the steel rail current acquisition module can be transmitted to the single-chip microcomputer, and the single-chip microcomputers transmit the current information to a monitoring platform in the local area network through the router of the local area network for display so as to be remotely monitored.
The single-chip microcomputers transmit current information to a monitoring platform in the local area network through the router of the local area network to be displayed for remote monitoring, and the method comprises the following steps:
step A-1: and the router of the local area network obtains the current information transmitted to the monitoring platform by the single-chip microcomputer.
Before obtaining the current information to be transmitted to the monitoring platform, which is transmitted by the plurality of single-chip microcomputers, the method also can include: the router of the local area network monitors whether the link with each single chip microcomputer is in link keeping connection or not, receives the current information which is transmitted to the monitoring platform and is transmitted by each single chip microcomputer when the monitoring link is in connection, and terminates the treatment when the monitoring link is not in link keeping connection until the monitoring link is in connection and can receive the current information which is transmitted to the monitoring platform and is transmitted by each single chip microcomputer.
After obtaining the current information to be transmitted to the monitoring platform and transmitted by the plurality of single-chip microcomputers, the method can further comprise the following steps: and judging whether the current information transmitted by each single chip microcomputer and to be transmitted to the monitoring platform meets the requirement or not according to the preset current information requirement, if so, turning to the step A-2, otherwise, transmitting a command of repeatedly transmitting the current information to the single chip microcomputers which do not meet the requirement, and receiving the current information repeatedly transmitted by the single chip microcomputers which do not meet the requirement.
Step A-2: and identifying whether the current information of each single chip microcomputer to be transmitted to the monitoring platform is complete one by one.
In detail, whether the current information to be transmitted to the monitoring platform is complete or not can be set by specific requirements, such as whether the current information to be transmitted to the monitoring platform is non-NULL or meets capacity constraints and form constraints.
The method comprises the steps of judging whether current information of each single chip microcomputer to be transmitted to a monitoring platform is complete or not, namely judging whether current information of each single chip microcomputer to be transmitted to the monitoring platform is complete or not one by one, judging whether the current information to be transmitted to the monitoring platform is complete or not by receiving first current information transmitted by a first single chip microcomputer and second current information transmitted by a second single chip microcomputer, judging whether the first current information transmitted by the first single chip microcomputer is complete or not, and judging whether the second current information transmitted by the second single chip microcomputer is complete or not.
Step A-3: and obtaining task mark codes in the current information to be transmitted to the monitoring platform of the single chip microcomputer, wherein the identification current information in each single chip microcomputer is complete.
Specifically, the task flag code included in the current information to be transmitted to the monitoring platform may be a preset identifier of the current information and a preset number of the current information, such as that the task flag code included in the current information to be transmitted to the monitoring platform of the first-mentioned single-chip microcomputer is first current information, and the task flag code included in the current information to be transmitted to the monitoring platform of the second-mentioned single-chip microcomputer is second current information.
Step A-4: and by means of the obtained task mark code of the single chip microcomputer with complete identification current information in each single chip microcomputer, performing first sub-frame division on an information frame of the current information to be transmitted to the monitoring platform of the single chip microcomputer with complete identification current information in each single chip microcomputer.
After obtaining the task mark code of the single chip microcomputer with complete identification current information in each single chip microcomputer, performing first sub-frame division on the current information to be transmitted to the monitoring platform of the single chip microcomputer with complete identification current information, wherein the single chip microcomputer with complete identification current information is a first single chip microcomputer, a second single chip microcomputer, a third single chip microcomputer and a fourth single chip microcomputer, the task mark code in the current information to be transmitted to the monitoring platform by the first single chip microcomputer is the task mark code of the first current information, the task mark code in the current information to be transmitted to the monitoring platform by the second single chip microcomputer is the task mark code of the second current information, the task mark code in the current information to be transmitted to the monitoring platform by the third single chip microcomputer is the task mark code of the third current information, and the task mark code in the current information to be transmitted to the monitoring platform by the fourth single chip microcomputer is the task mark code of the fourth current information, thus, the task mark codes of the two singlechips are randomly grouped, the first current information and the third current information are a first group, and the second current information and the fourth current information are a second group.
Step A-5: and determining the capacity of the current information to be transmitted to the monitoring platform of each single chip microcomputer with complete identification current information.
In detail, after the capacity of the current information to be transmitted to the monitoring platform of each single chip microcomputer with complete current information is identified in each single chip microcomputer, the registration of the capacity of each current information is performed, the serialization of the current information to be transmitted to the monitoring platform of each single chip microcomputer with complete current information identification can be performed according to the capacity of the current information, and the sub-frame division of the current information is facilitated to be performed later.
Step A-6: and obtaining the capacity of each subframe after the subframe is divided for the first time by means of the determined capacity of the current information to be transmitted to the monitoring platform of the single chip microcomputer with complete identification current information in each single chip microcomputer.
Wherein, for the first, second, third and fourth singlechips, the monolithic processor with complete identification current information is assumed in a-5 to be the capacity of the current information to be transmitted to the monitoring platform of the first, second, third and fourth singlechips, as if the current information to be transmitted to the monitoring platform of the first singlechip is 84 x 1024bits, the current information to be transmitted to the monitoring platform of the second singlechip is 72 x 1024bits, the current information to be transmitted to the monitoring platform of the third singlechip is 64 x 1024bits, the current information to be transmitted to the monitoring platform of the fourth singlechip is 98 x 1024bits, if the first divided sub-frame of the two singlechips is a-4, the current information to be transmitted to the monitoring platform of the first singlechip and the current information to be transmitted to the monitoring platform of the third singlechip are divided into a group, the capacity of the current information of the cluster is 150 × 1024bits, the current information to be transmitted to the monitoring platform by the second single chip microcomputer and the current information to be transmitted to the monitoring platform by the fourth single chip microcomputer are divided into a cluster, and the capacity of the current information of the cluster is 170 × 1024 bits.
Step A-7: and dividing the subframe again according to the conclusion of the divided subframe after the subframe is divided for the first time by means of the capacity of each subframe after the subframe is divided for the first time and the preset group current information transmission capacity.
In detail, a group of current information transmission capacities is set in advance according to specific conditions, and as for the first single chip microcomputer, the second single chip microcomputer, the third single chip microcomputer and the fourth single chip microcomputer, the current information to be transmitted to the monitoring platform by the first single chip microcomputer and the current information to be transmitted to the monitoring platform by the third single chip microcomputer are divided into a group, the current information of the group has a capacity of 150 1024bits, the current information to be transmitted to the monitoring platform by the second single chip microcomputer and the current information to be transmitted to the monitoring platform by the fourth single chip microcomputer are divided into a group, the current information of the group has a capacity of 170 bits 1024bits, the current information to be transmitted to the monitoring platform by the first single chip microcomputer and the current information subframe to be transmitted to the monitoring platform by the third single chip microcomputer have a capacity of more than 165 bits 1024bits, the current information transmitted by the monitoring platform by the third singlechip and the current information transmitted by the monitoring platform by the second singlechip can be exchanged, namely the current information between the differently divided subframes is exchanged, after the exchange, the current information transmitted by the monitoring platform by the first singlechip and the current information transmitted by the monitoring platform by the second singlechip are divided into a group, the capacity of the current information of the group is 162 x 1024bits, the current information transmitted by the third singlechip and the current information transmitted by the monitoring platform by the fourth singlechip are divided into a group, the capacity of the current information of the group is 162 x 1024bits, and the capacities of the two groups of current information are not higher than 165 x 1024bits, so that the requirement is met, and the exchange is terminated.
Step A-8: and transmitting the current information which is transmitted to the monitoring platform by the single chip microcomputer with complete current information identification in each single chip microcomputer according to the conclusion of dividing the sub-frame of the sub-frame again.
Transmitting current information to be transmitted to the monitoring platform by each single chip microcomputer according to a subframe dividing conclusion once, and improving the transmission performance of potential information to the monitoring platform; before transmitting the current information to be transmitted to the monitoring platform of the single chip microcomputer with complete current information identified in each single chip microcomputer to the monitoring platform, the method can further comprise the following steps: the method comprises the steps that the links of a router of a local area network and a monitoring platform are not in link keeping communication, when the monitoring links are kept in communication, current information of the single-chip microcomputer with complete current information identification in each single-chip microcomputer, which is to be transmitted to the monitoring platform, is transmitted to the monitoring platform according to the conclusion of sub-frames of the current information of the single-chip microcomputer, which is to be transmitted to the monitoring platform, of complete current information identification in each single-chip microcomputer, and when the monitoring connections are not in link keeping communication, treatment is stopped until the current information of the single-chip microcomputer, which is to be transmitted to the monitoring platform, can be transmitted to the monitoring platform when the monitoring links are in communication.
Therefore, the current information transmission method can efficiently transmit the current information to the monitoring platform, overcomes the defect that the current information transmission performance is poor when the current information transmission is executed in a wireless transmission mode, reduces the requirement on the transmission of the current information to the monitoring platform because the current information divides the subframes, and is suitable for specific application.
The resistance monitoring device under the rail potential further comprises a processing module running on a router of the local area network;
the processing module is used for obtaining current information which is transmitted to the monitoring platform and is transmitted by the single-chip microcomputer; the current information which is used for identifying each single chip microcomputer one by one and is transmitted to the monitoring platform is not complete; the task mark code is used for obtaining the task mark code in the current information to be transmitted to the monitoring platform of the single chip microcomputer with complete identification current information in each single chip microcomputer; the system comprises a singlechip, a monitoring platform and a sub-frame division module, wherein the singlechip is used for acquiring a task mark code of the singlechip with complete identification current information in each singlechip and executing the sub-frame division for the first time on an information frame of the current information to be transmitted to the monitoring platform of the singlechip with complete identification current information in each singlechip; the capacity of the current information to be transmitted to the monitoring platform is determined for each single chip microcomputer with complete identification current information; the capacity of each subframe after the subframe is divided for the first time is obtained by means of the identified capacity of the current information to be transmitted to the monitoring platform of the single chip microcomputer with complete current information in each single chip microcomputer; the method comprises the steps of dividing a subframe again according to the capacity of each subframe after the subframe is divided for the first time and the preset group current information transmission capacity; and the current information which is transmitted to the monitoring platform by the single chip microcomputer with complete identification current information in each single chip microcomputer is transmitted to the monitoring platform according to the conclusion of dividing the sub-frame of the sub-frame again.
While the present invention has been described above in terms of procedures illustrated in embodiments, it will be understood by those skilled in the art that the present disclosure is not limited to the above-described embodiments, and that various changes, modifications, and substitutions may be made without departing from the scope of the present invention.
Claims (9)
1. A resistance monitoring device under a rail potential comprises a high internal resistance potentiometer; one end of the high internal resistance potentiometer is connected to a rail grounding clamp through a measuring lead;
the rail grounding clamp is characterized by comprising an inflation box, wherein a holding handle is fixedly connected to the middle of the bottom wall of the inflation box, a booster motor is arranged on one side of the bottom wall of the inflation box, and a positioning rod is fixedly connected between the booster motor and the inflation box.
2. The device for monitoring the resistance at a rail potential according to claim 1, wherein an air supply channel is communicated between the booster motor and the air inflation box, the top of the air inflation box is fixedly connected with a guide frame, a moving plate is sleeved on the wall surface of the guide frame at an equal distance, a tension screw rod is assembled between the moving plate and the guide frame, the top of the moving plate is fixedly connected with a fluid channel, the wall surface of the fluid channel is fixedly connected with a hollow rubber cylinder, and a guide channel is fixedly connected between the fluid channel and the air inflation box.
3. The device for monitoring the resistance at a rail potential according to claim 1, wherein a lead screw is welded to the front wall of the air inflation box at equal intervals, a cylindrical connecting bar is sleeved on the wall surface of the lead screw, a nut is sleeved on the outer wall surface of the lead screw, and electric heating rods are assembled on the wall surface of the cylindrical connecting bar at equal intervals.
4. The device of claim 3, wherein the movable plate is movably coupled to the guide frame.
5. A rail potential resistance monitoring device as claimed in claim 3 in which the guide channels are of plastics material and communicate with the fluid channels and the gas-filled chamber respectively.
6. The device for monitoring the resistance at a rail potential of claim 3, wherein the lead screw is threaded with a nut.
7. The device of claim 3, wherein the electrical heater bar is hollow and has an electrical heating strip coiled therein.
8. A device for monitoring resistance at rail potential as claimed in claim 3 wherein the guide channel communicates with a hollow rubber cylinder.
9. A device for monitoring the resistance at a rail potential according to claim 3, wherein when the measuring lead is connected to the rail grounding clip, the worker initially holds the grip handle, waits for the rail grounding clip to approach the measuring lead, then adjusts the tension screw to shorten the interval between the moving plates and simultaneously also shorten the interval between the fluid passages, connects the pressurizing motor to the surrounding power supply of the glow stick, and when the measuring lead is short enough, the measuring lead is connected, the measuring lead is placed between the hollow rubber cylinders, then the pressurizing motor is started, the pressurizing motor supplies air to the air-filling box, and thus the air is supplied to the hollow rubber cylinders through the guide passage, and the hollow rubber cylinders are inflated, so that the measuring leads are firmly clamped by the hollow rubber cylinders 2, and then the ends of the clamped measuring leads are connected, during execution, if the temperature point is not high, the electric heating rod is electrified, so that temperature rise is performed beside the measuring lead, the rigidity of the measuring lead is reduced, the measuring lead is prevented from being too high, the columnar connecting bar can be placed on different lead screws through adjustment of the screw nut, the position of the electric heating rod is adjusted, the temperature rise is performed on different positions, and connection of the measuring lead is achieved.
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| CN201911126270.6A CN111220849A (en) | 2019-11-18 | 2019-11-18 | Resistance monitoring device under rail potential |
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| CN201911126270.6A CN111220849A (en) | 2019-11-18 | 2019-11-18 | Resistance monitoring device under rail potential |
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Application publication date: 20200602 |