CN212921524U - Point switch position indicating device and intelligent point switch - Google Patents
Point switch position indicating device and intelligent point switch Download PDFInfo
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- CN212921524U CN212921524U CN202020704902.4U CN202020704902U CN212921524U CN 212921524 U CN212921524 U CN 212921524U CN 202020704902 U CN202020704902 U CN 202020704902U CN 212921524 U CN212921524 U CN 212921524U
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Abstract
The utility model discloses a goat position shows device and intelligent goat, this goat is by motor drive action pole, and the action pole drives the switch tongue and moves, goat position shows device includes: a presentation bar that moves in response to movement of the switch blade; and the indicating rod monitoring sensor is used for monitoring the indicating rod position so as to monitor the current position of the switch blade. The utility model discloses to the defect that the automatic switch mechanism of present goat exists, the position of goat shows the pole monitoring sensor that adopts the expression pole and the monitoring that remove along with the switch tongue and show the pole, replaces current automatic switch mechanism, has simplified the structure, can show according to motor drive moment and the close subsides of pole position information self-adaptation regulation, reduces artifical the maintenance.
Description
Technical Field
The utility model belongs to the technical field of intelligent transportation, concretely relates to goat technique.
Background
The prior switch machine comprises a power unit, a transmission mechanism, a locking device and an indicating device (an automatic shutter and a turnout indicating circuit), the switch machine can only be controlled in a centralized way through an interlocking device, the prior switch machine can not realize the autonomous control of a train along with the further development of train-to-train communication, and the prior switch machine turnout circuit can only realize the rotation control of a turnout motor and the circuit indication of the self state, and can not analyze and report the self running state and predict the failure. The automatic opening and closing mechanism is ingenious and complex, is greatly influenced by the internal environment of the switch box body, the elasticity of the spring is gradually weakened along with the increase of the action times, and the loss speed is obviously accelerated; and all parts in the inspection column are not easy to clean, the inspection column is easy to be wrapped by oil stain, dust and the like after long-time work, so that the inspection column is not flexible to fall, and the problem that the inspection column is blocked in an action hole is solved. Both of these conditions have a significant impact on the reliability of the switch position indication module.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a simplified structure goat position representation device is provided.
In order to solve the technical problem, the utility model adopts the following technical scheme: a switch machine position indicating device in which a motor drives an operating rod that drives a switch point to operate, the switch machine position indicating device comprising:
a presentation bar that moves in response to movement of the switch blade;
and the indicating rod monitoring sensor is used for monitoring the indicating rod position so as to monitor the current position of the switch blade.
Preferably, the indication rod monitoring sensor is a position sensor, and the position sensor is an image sensor and/or a travel switch and/or a proximity switch.
Preferably, the travel switch comprises a positive travel switch and a negative travel switch, the indicating rod is provided with a positive position locking piece and a negative position locking piece, the positive position locking piece is used for triggering the positive travel switch, and the negative position locking piece is used for triggering the negative travel switch.
Preferably, the positive position travel switch and the negative position travel switch are both arranged in a redundant manner.
Preferably, a screw thread part is provided in the middle of the indication rod, and the normal position locking member and the reverse position locking member are screwed with the screw thread part.
Preferably, the rod-indicating monitoring sensor is a displacement sensor for monitoring a change in displacement of the rod.
Preferably, the displacement sensor is a magnetostrictive displacement sensor and/or an inductive displacement sensor and/or a capacitive displacement sensor.
Preferably, the motor is provided with a motor rotor position sensor, and the motor rotor rotation angle is detected through the motor rotor position sensor so as to monitor the current position of the switch blade.
Preferably, the switch point switch further comprises an action rod monitoring sensor for monitoring the position of the action rod so as to monitor the current position of the switch point rail.
The utility model also provides an intelligence goat, include goat position show device.
The utility model adopts the above technical scheme, following beneficial effect has:
1. aiming at the defects of the automatic switch mechanism of the prior switch machine, the position indication of the switch machine adopts an indication rod moving along with a switch point and an indication rod monitoring sensor for monitoring the indication rod, replaces the prior automatic switch mechanism, simplifies the structure, can adaptively adjust the close indication according to the driving torque of a motor and the indication rod position information, and reduces manual maintenance. The indication rod monitoring sensor and the core processing board replace the hardware structure of the indication device, and the circuit design is simpler and more reliable.
2. When the motor moves, the self-locking transmission mechanism drives the action rod to push the switch rail to be closely attached to the stock rail, and at the moment, the indication rod is in contact with a normal position travel switch of the point switch, and meanwhile, the motor is cut off to avoid misoperation of the motor. When the train passes, the train commands the switch machine to move to the reverse position, the motor rotates reversely, the self-locking transmission mechanism drives the action rod to move in the reverse direction, and when the action rod moves to the reverse position, the indication rod contacts the reverse position travel switch of the switch machine, and the motor is cut off at the same time, so that misoperation of the motor is avoided.
3. The middle of the indication rod is provided with a thread part, and the positive position locking piece and the negative position locking piece are both in threaded connection with the thread part, so that the positive position locking piece and the negative position locking piece can be conveniently adjusted in position in a stepless mode according to site working conditions.
4. The position sensors representing the rod monitoring sensors and the rotor of the brushless DC motor are redundant to each other and are used for monitoring the operation condition and predicting faults of the switch machine.
5. The indication rod monitoring sensor and the action rod monitoring sensor are mutually redundant and are used for monitoring the running condition of the switch machine and predicting the fault.
The specific technical solution and the advantages of the present invention will be described in detail in the following detailed description with reference to the accompanying drawings.
Drawings
The invention will be further described with reference to the accompanying drawings and specific embodiments:
fig. 1 is a schematic view of the relationship between an intelligent switch and a train and between an intelligent operation and maintenance platform and an integrated automation platform of the train according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the intelligent switch machine of the present invention;
fig. 3 is a schematic structural diagram of a third embodiment of the intelligent switch machine of the present invention;
FIG. 4 is a functional block diagram of a core processing board;
in the figure: 1-switch machine, 11-motor, 111-motor drive plate, 12-transmission mechanism, 13-push plate sleeve, 14-action rod, 15-indication rod, 151-positive position locking piece, 152-negative position locking piece, 16-sensor group, 161-positive position travel switch, 162-negative position travel switch, 163-action rod monitoring sensor, 17-core processing plate, 18-gear mechanism; 2-rail, 21-switch blade; 3-train, 31-onboard controller; 4-intelligent operation and maintenance of the train and a comprehensive automation platform.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It will be appreciated by those skilled in the art that features from the examples and embodiments described below may be combined with each other without conflict.
Example one
Referring to fig. 1 to 4, an intelligent switch machine 1 capable of being autonomously controlled by a train runs on a track 2, the switch machine 1 controls a switch point rail 21 to change the position of a switch, and a vehicle-mounted controller 31 is arranged on the train 3 to remotely control the switch machine 1. It comprises switch drive means, switch position indicating means, a set of sensors 16 and a core processing board 17. The point switch driving device comprises a motor 11, a transmission mechanism 12 and an action rod 14, wherein the motor 11 drives the action rod 14 through the transmission mechanism 12, and the action rod 14 drives the turnout switch rail 21 to act.
The switch machine position indicating device comprises an indicating rod 15 and an indicating rod monitoring sensor, wherein the indicating rod 15 is connected with the switch point rail 21, the action rod 14 pushes the switch point rail 21 to move, the indicating rod 15 moves along with the action of the switch point rail 21, and the indicating rod monitoring sensor is used for monitoring the position of the indicating rod 15 so as to monitor the current position of the switch point rail 21 and judge whether the action of the switch point rail 21 is in place.
In addition, the sensor group 16 includes a switch machine state monitoring sensor for monitoring a state of a switch machine, the core processing board 17 is provided with a switch machine state monitoring module, the switch machine state monitoring module receives switch machine state information monitored by the switch machine state monitoring sensor and reports the state of the switch machine to the train intelligent operation and maintenance and integrated automation platform 4 in real time in a wired or wireless communication mode, the train intelligent operation and maintenance and integrated automation platform 4 judges whether the switch machine 1 normally operates, and then the core processing board 17 receives a judgment result of whether the switch machine normally operates.
The core processing board 17 can directly adopt the configuration of the switch machine in the prior art, meanwhile, the core processing board 17 is additionally provided with a wireless communication module for carrying out wireless communication with the vehicle-mounted controller 31, sending the current position of the switch point rail 21 to the vehicle-mounted controller 31 through the wireless communication module, receiving switch normal position and reverse position control commands sent by the vehicle-mounted controller 31, and controlling the motor 11 to act according to the commands. When the train 3 runs on the track 2 and approaches the switch blade 21, the onboard controller 31 sends switch normal and reverse control commands to the core processing board 17 through the wireless communication module.
The transmission mechanism 12 is a self-locking transmission mechanism, and may be a gear-driven self-locking ball screw, or a transmission mechanism with self-locking function, such as a worm gear, a gear rack, or the like. The self-locking transmission mechanisms are all provided with linear motion parts, the rotation of the motor is converted into linear motion through the self-locking transmission mechanisms, the linear motion parts are connected with the push plate sleeve 13, the push plate sleeve 13 is connected with the action rod 14, so that the action rod 14 can be driven to move through the push plate sleeve 13, and then the action rod 14 drives the turnout switch rail 21 to act.
The point squeezing means the process that when a train passes through a point in the straight direction, the point rail cannot be closely attached to the stock rail due to incorrect position of the point, and when wheels are rolled, the point rail and the stock rail are squeezed apart. At the moment, the turnout is not positioned, is not reversed and is in a four-opening state, so that the train is easy to derail and overturn. In order to avoid the self-locking transmission mechanism from being damaged due to the reaction of the self-locking transmission mechanism during the fork squeezing, a squeezing pin is arranged between the push plate sleeve 13 and the action rod 14, and the squeezing pin is cut off during the fork squeezing, so that the action rod 14 is separated from the push plate sleeve 13.
In the present embodiment, the rod 15 is shown to be constrained by a limiting hole to achieve linear movement. The indicating rod monitoring sensor is a position sensor for monitoring the indicating rod position state. For example, the position sensor is an image sensor and/or a travel switch and/or a proximity switch, etc. Of course, it will be understood by those skilled in the art that the rod-indicating sensor may also be a displacement sensor that monitors changes in rod displacement. For example, the displacement sensor is a magnetostrictive displacement sensor and/or an inductive displacement sensor and/or a capacitive displacement sensor, and the like.
In this embodiment, the motor 11 is a dc brushless motor, and the dc brushless motor is provided with a motor driving board 111 for driving the dc brushless motor to act according to the control command. The problems that a brush motor is easy to wear and low in reliability are solved. Through the motor drive board, can realize functions such as speed governing in the rotation process. In addition, referring to the prior art, the motor may be provided with a sensor for monitoring parameters thereof, and information such as motor speed, acceleration, voltage, current, driving torque and the like may be acquired in real time. Therefore, the switch machine fault can be predicted according to the parameter state of the switch machine. For example, an ideal current-speed curve model, such as an energy-saving model, may be set, and the switch machine may be operated according to the curve model, and the sampled actual operating curve may be compared with the ideal curve model to determine whether the deviation from the ideal curve model exceeds a predetermined threshold, so as to determine whether the switch machine is out of order.
In order to ensure safety and reliability, the rail transit signal system is provided with safety redundancy. Thus, in addition to the aforementioned indication rod monitoring sensors, redundancy in switch point position monitoring can be achieved by the following means.
Further, the motor 11 is provided with a motor rotor position sensor, and the current position of the turnout switch rail is monitored through the motor rotor position sensor. Wherein the motor rotor position sensor may be a rotary transformer, a photoelectric or capacitive encoder, a hall effect, or the like. The motor rotor position sensor and the indicating rod monitoring sensor are mutually redundant. Ensure that the action bars are moved into position and can be used to predict whether the switch machine motion is malfunctioning.
Further, the sensor group 16 further includes a motion bar monitoring sensor 163 for monitoring the position of the motion bar to monitor the current position of the switch blade 21, and the motion bar monitoring sensor 163 is redundant with the indication bar monitoring sensor. Ensure that the action bars are moved into position and can be used to predict whether the switch machine motion is malfunctioning. The motion bar monitoring sensor 163 may be provided with two that are redundant to each other.
Wherein, the indication rod monitoring sensor is a main sensor, and the motor rotor position sensor and the action rod monitoring sensor are auxiliary sensors. If the action rod and the indication rod are in place, the switch tongue is in place, and fault analysis can be carried out according to specific conditions under other conditions.
In addition, the switch machine fault monitoring can be carried out through the comprehensive judgment of the motor current and the indication rod monitoring sensor and the action rod monitoring sensor. The motor sets a threshold current, and when the motor reaches the threshold current, the action rod and the indication rod do not move to a preset position, which indicates that foreign matter is blocked at the switch blade. When the motor does not reach the threshold current, the indicating rod and the action rod move to the preset positions, which shows that the switch tongue is not closely attached to the stock rail due to stress release, and the indicating device needs to be maintained again. The actuating rod is moved into position and the motor reaches a threshold current indicating that the rod is not in position, indicating that the connection of the rod to the switch point rail is faulty.
Wherein the switch machine state monitoring sensor comprises an audio sensor and/or a vibration sensor and/or a video sensor and/or a temperature and humidity sensor. The vibration sensor is used for monitoring the vehicle passing state, and the audio sensor is used for monitoring the internal mechanical operation noise; the video sensor collects internal images, and the temperature and humidity sensor is used for monitoring the temperature and humidity state of the switch machine. The switch machine state can be judged according to the monitoring information of the switch machine state monitoring sensor. For example, the normal audio state of the switch machine is recorded, and when the audio state is abnormal, analysis is performed in the background to judge whether the running fault of the transmission mechanism occurs. The temperature and humidity sensor is abnormal, which indicates that the switch machine is possibly supplied with water. For a specific analysis of the above-mentioned sensors reference can be made to the prior art. In order to simplify the switch machine circuit, the analysis is generally not performed on the switch machine core processing board, but the state of the switch machine is reported to the intelligent operation and maintenance and integrated automation platform 4 of the train in real time for analysis. The intelligent operation and maintenance and comprehensive automation platform 4 of the train is provided with an ATS, an MSS and a trackside controller, and the specific structure and the function refer to the prior art. Of course, one skilled in the art will appreciate that other types of sensors may be added.
As shown in fig. 4, the core processing board 17 redundantly uses an isolated power supply to meet the safety design requirement of the rail transit equipment. And the interfaces such as an audio sensor, a vibration sensor, a video sensor, a temperature and humidity sensor and the like are reserved correspondingly and connected with the corresponding audio sensor, vibration sensor, video sensor and temperature and humidity sensor, so that the working state information of the point switch can be conveniently and comprehensively obtained.
The core processing board 17 is provided with a wireless communication interface, and wirelessly communicates with the vehicle-mounted controller 31 through the wireless communication interface. Furthermore, the core processing board 17 reserves another communication interface at the same time, supports communication modes such as optical fiber and the like, supports both wireless communication and wired communication, can communicate with the interlock/trackside controller, and is suitable for control of the existing interlock/trackside controller.
Example two
If the switch machine 1 fails, the electric motor 11 cannot drive the actuating rod 14 to return. As shown in fig. 2, the switch machine 1 is provided with a gear mechanism 18, the gear mechanism 18 is connected with a self-locking transmission mechanism, the gear mechanism 18 is connected with a handle, and the action rod 14 can be manually reset by shaking the handle when the switch machine 1 fails.
EXAMPLE III
As shown in fig. 3, in the present embodiment, the indicating rod monitoring sensor is a travel switch, the indicating rod 15 is provided with a positive position lock piece 151 and a negative position lock piece 152, a positive travel switch 161 is provided corresponding to the positive position lock piece 151, and a negative travel switch 162 is provided corresponding to the negative position lock piece 152. The positive position lock 151 is used to activate a positive travel switch 161 indicating the position of the rod, and to monitor that the rod 15 is positive. The reverse position lockout 152 is used to activate a reverse travel switch 162 that indicates the stem, and monitoring indicates that the stem 15 is reversed.
Optionally, two positive position switches 161 are redundant to each other, and two negative position switches 162 are redundant to each other.
When the motor 11 moves through the transmission mechanism 12 to drive the action rod 14, the switch tongue 21 is pushed to be closely attached to the stock rail, and at the moment, the indication rod 15 contacts the normal position travel switch 161 of the switch machine, and the motor 11 is cut off to avoid misoperation of the motor 11. When the passing is completed, the train commands the switch machine to move to the reverse position, the motor 11 rotates reversely, the transmission mechanism 12 drives the action rod 14 to move in the reverse direction, and when the action rod 14 moves to the reverse position, the indication rod 15 contacts the reverse position travel switch 162 of the switch machine, and simultaneously the motor 11 is cut off, so that the misoperation of the motor 11 is avoided.
The middle of the indication rod 15 is provided with a thread part, and the positive position locking piece 151 and the negative position locking piece 152 are both in threaded connection with the thread part, so that the positions of the positive position locking piece and the negative position locking piece can be adjusted steplessly according to the site working conditions.
The intelligent point switch control method capable of realizing train autonomous control comprises the following steps:
s1, the vehicle-mounted controller sends a turnout righting control command to the switch machine core processing board through wireless communication, when the switch machine core processing board receives the turnout righting control command, the command is sent to the motor driving board to drive the motor to rotate, the motor rotation is converted into the linear motion of the push plate sleeve by the transmission mechanism and drives the action rod to push the turnout switch rail to move close to the righting basic rail;
s2, motor sensor information, indication rod monitoring sensor information, action rod monitoring sensor information and switch machine state monitoring sensor which are acquired by a motor driving plate in real time monitor the state of the switch machine in real time, and meanwhile, a core processing plate acquires data of each sensor to judge whether the switch machine normally operates and whether switch points and stock rails are closely attached;
s3; when the point switch works normally and the basic rails of the switch point rails are closely attached, the point switch reports the state to the vehicle-mounted controller in a wireless communication mode, and the core processing board cuts off the power of the motor, so that the misoperation of the motor is avoided.
In the process, the switch machine core processing board can report the states of all parameters of the switch machine core processing board to the intelligent operation and maintenance and comprehensive automation platform of the train in real time, and the platform can conveniently monitor and predict the faults of the switch machine.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (10)
1. A switch machine position indicating device, the switch machine being driven by a motor to drive an operating rod, the operating rod driving a switch point to operate, characterized in that: the switch machine position indicating device includes:
a presentation bar that moves in response to movement of the switch blade;
and the indicating rod monitoring sensor is used for monitoring the indicating rod position so as to monitor the current position of the switch blade.
2. A switch machine position representation device according to claim 1, characterized in that: the indication rod monitoring sensor is a position sensor, and the position sensor is an image sensor and/or a travel switch and/or a proximity switch.
3. A switch machine position representation apparatus as claimed in claim 2, characterized in that: travel switch includes normal position travel switch and counterpoint travel switch, install normal position locking piece and counterpoint position locking piece on the demonstration pole, normal position locking piece is used for triggering normal position travel switch, counterpoint position locking piece is used for triggering counterpoint travel switch.
4. A switch machine position representation apparatus as claimed in claim 3, characterized in that: the positive position travel switch and the negative position travel switch are arranged in a redundant mode.
5. The switch machine position representation device according to claim 4, characterized in that: the middle of the indicating rod is provided with a thread part, and the positive position locking piece and the negative position locking piece are in threaded connection with the thread part.
6. A switch machine position representation device according to claim 1, characterized in that: the representing rod monitoring sensor is a displacement sensor for monitoring and representing the displacement change of the rod.
7. The switch machine position representation device according to claim 6, characterized in that: the displacement sensor is a magnetostrictive displacement sensor and/or an inductive displacement sensor and/or a capacitive displacement sensor.
8. A switch machine position indicating device according to any one of claims 1 to 7, characterized in that: the motor is provided with a motor rotor position sensor, and the motor rotor rotation angle is detected through the motor rotor position sensor so as to monitor the current position of the turnout switch rail.
9. A switch machine position representation apparatus as claimed in claim 8, characterized in that: the switch point rail switch also comprises an action rod monitoring sensor used for monitoring the position of the action rod so as to monitor the current position of the switch point rail.
10. Intelligent goat, its characterized in that: comprising a switch machine position indicating device according to any of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020704902.4U CN212921524U (en) | 2020-04-30 | 2020-04-30 | Point switch position indicating device and intelligent point switch |
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| CN202020704902.4U CN212921524U (en) | 2020-04-30 | 2020-04-30 | Point switch position indicating device and intelligent point switch |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113460122A (en) * | 2021-07-09 | 2021-10-01 | 北京昊鹏智能技术有限公司 | State detection method, device, equipment and medium for electric turnout switch machine system |
| CN113581253A (en) * | 2021-07-26 | 2021-11-02 | 中国铁路兰州局集团有限公司 | Method and device for determining state of electric empty switch machine |
-
2020
- 2020-04-30 CN CN202020704902.4U patent/CN212921524U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113460122A (en) * | 2021-07-09 | 2021-10-01 | 北京昊鹏智能技术有限公司 | State detection method, device, equipment and medium for electric turnout switch machine system |
| CN113581253A (en) * | 2021-07-26 | 2021-11-02 | 中国铁路兰州局集团有限公司 | Method and device for determining state of electric empty switch machine |
| CN113581253B (en) * | 2021-07-26 | 2023-10-03 | 中国铁路兰州局集团有限公司 | State determination method and device for electric air switch machine |
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