Traction turning wheel alignment system

Abstract

The utility model discloses a traction turning wheel alignment system which comprises a rail side control cabinet, a rail side detection device and a tractor automatic control platform, the tractor automatic control platform is in signal connection with a tractor, and the rail side detection device comprises a tractor number identification module, an axle counting detection module, an approaching detection module and an alignment detection module. The train number identification module is suitable for acquiring the train number and the number of each carriage, the axle counting detection module is suitable for acquiring a train axle position signal, the approach detection module is suitable for acquiring the initial positioning position of a train, and the alignment detection module is suitable for acquiring the actual distance between wheels of the train and the center position of a lathe. According to the utility model, the wheel set required to be subjected to turning repair and the non-pulling wheel lathe are subjected to primary positioning and then secondary accurate automatic alignment, so that a tractor is controlled to pull a train at a higher speed before the primary positioning and pull the train at a lower speed after the primary positioning, and the operation time of a turning wheel can be saved while the alignment precision is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting facilities used in rail vehicle wheel processing, in particular to a traction lathe wheel alignment system. Background Art

[0002] With the rapid development of my country's economic construction, the speed of trains has increased year by year, and rail transportation has developed towards high speed and heavy load. As the running parts of the train, the wheels are subject to impact, cyclic stress, friction, high and low temperature, etc. during driving, and wear, cracks, peeling and other phenomena are very common. It is necessary to use a wheel-less lathe regularly or in a timely manner to repair the wheel surface and restore the wheel to its original profile and size. At present, the train is towed by a road-rail dual-purpose tractor to the wheel-less lathe for wheel lathe repair, and manual coordination is required to align the train wheels with the designated wheel turning position. The lathe staff observes the real-time position of the wheelset with the naked eye, and then directs the tractor driver to control the road-rail dual-purpose tractor to continuously move and adjust on the track according to the observed position, so that the wheelset reaches the designated wheel turning position. Each manual alignment takes 10-20 minutes. For a 6-carriage subway train equipped with a single-axle wheel-on lathe, 24 alignments are required. For a long-carriage high-speed EMU equipped with a double-axle wheel-on lathe, 34 alignments are required. This reduces the efficiency of wheel turning and consumes a lot of manpower.

[0003] The Chinese invention patent with the authorization announcement number CN 111468744 B discloses an intelligent traction alignment system for underfloor wheel lathes, including a safety interlock control subsystem, anti-collision induction radar and wireless video monitoring equipment, a wireless signal transmission module, an axle number image recognition subsystem, a display, and a remote control device; the control computer terminal in the underfloor wheel lathe warehouse is equipped with a wheel pair automatic alignment control subsystem unit, a central integrated control subsystem unit, a traction vehicle automatic traction subsystem unit, and an underfloor wheel lathe operation subsystem unit; the central integrated control subsystem unit also has a wireless signal transmission module. The train traction alignment is completed intelligently to the accurate position in the underfloor wheel lathe warehouse, improving the operator's work efficiency and reducing labor costs and time costs.

[0004] However, the above scheme cannot automatically adjust the speed at which the tractor tows the train into the wheel-free wheel turning lathe warehouse. In actual use, in order to ensure the alignment accuracy, only a relatively slow traction speed can be maintained. The train still has a long distance from entering the wheel-free wheel turning lathe warehouse to automatic alignment, which restricts the overall alignment efficiency. Utility Model Content

[0005] The purpose of the utility model is to propose a traction wheel alignment system to address the deficiencies of the prior art. After the required wheel pair to be turned and repaired is initially positioned with the wheel turning machine, a secondary precise automatic alignment is performed. Thus, before the initial positioning, the tractor is controlled to tow the train at a higher speed and after the initial positioning, the train is towed at a slower speed. This can save wheel turning operation time while ensuring the alignment accuracy.

[0006] The technical solution to achieve the purpose of this utility model is:

[0007] A traction lathe wheel alignment system comprises a trackside control cabinet, a trackside detection device and a tractor automatic control platform, both of which are connected to the trackside control cabinet signal. The trackside control cabinet is installed on the side of a non-underfloor wheel lathe warehouse and is suitable for receiving data information collected by the trackside detection device, and sending it to the tractor automatic control platform after analysis and judgment. The tractor automatic control platform is connected to the tractor signal and is suitable for controlling the tractor action. The trackside detection device is installed at the track position of the non-underfloor wheel lathe warehouse, and comprises a vehicle number recognition module, an axle counting detection module, a proximity detection module and an alignment detection module arranged in sequence along the direction of the train traction vehicle. The vehicle number recognition module is suitable for obtaining the train number and the number of each carriage, the axle counting detection module is suitable for obtaining the train axle position signal, the proximity detection module is suitable for obtaining the initial positioning position of the train, and the alignment detection module is suitable for obtaining the actual distance between the train wheel and the center position of the lathe.

[0008] Furthermore, the vehicle number recognition module, the proximity detection module and the alignment detection module all use industrial cameras, and the industrial cameras are connected to the trackside control cabinet signals.

[0009] Furthermore, the axle counter detection module adopts a wheel sensor, and the wheel sensor is connected to the trackside control cabinet signal.

[0010] Furthermore, the trackside control cabinet includes a chassis and a power box fixedly installed in the chassis, and an industrial computer, a switch, a first wireless communication device and a KVM (Kernel-based Virtual Machine) are electrically connected to the power box, the trackside detection device is signal-connected to the industrial computer, and the industrial computer and the first wireless communication device are electrically connected to the switch.

[0011] Furthermore, the tractor automatic control platform includes an automatic control unit and a second wireless communication device and a laser scanner both electrically connected to the automatic control unit, and the second wireless communication device is signal-connected to the first wireless communication device.

[0012] Furthermore, the tractor automatic control platform also includes a monitoring camera connected to the automatic control unit signal.

[0013] Furthermore, it also includes a safety interlock control unit installed on the tractor and the underfloor wheel turning lathe.

[0014] Furthermore, a photoelectric beam switch is provided at the front end of the vehicle number recognition module in the direction of the oncoming vehicle, and the photoelectric beam switch is connected to the trackside control cabinet signal.

[0015] By adopting the above technical solution, the utility model has the following beneficial effects:

[0016] (1) The utility model uses trackside detection equipment to monitor the various position parameters of the towed train in real time and sends them to the trackside control cabinet. The trackside control cabinet analyzes and processes the signals and sends them to the tractor automatic control platform. The tractor automatic control platform then controls the tractor to move, thereby driving the train to move, thereby completing the automatic alignment with the wheel-free lathe. The trackside detection equipment is provided with a proximity detection module and an alignment detection module, thereby achieving the initial positioning of the wheelset to be repaired and the wheel-free lathe and then performing a secondary precise automatic alignment. Then, the signals are sent to the trackside control cabinet and the tractor automatic control platform in turn to control the tractor to pull the train at a higher speed before the initial positioning and at a slower speed after the initial positioning. While ensuring the alignment accuracy, it can save the wheel turning operation time and improve the wheel turning operation efficiency.

[0017] (2) The utility model uses an industrial camera as a vehicle number recognition module, a proximity detection module and an alignment detection module, and obtains corresponding position information by taking high-definition photos, thereby improving the accuracy of position detection.

[0018] (3) The utility model adopts a wheel sensor as an axle counting detection module to obtain the train axle position signal, realizes axle counting on both sides of the train, and improves the accuracy of the axle signal.

[0019] (4) The utility model tractor automatic control platform is equipped with a monitoring camera to monitor the tractor's traction road conditions in real time and enable the tractor to avoid obstacles safely.

[0020] (5) The utility model is also provided with a safety interlock control unit to achieve wheel braking and improve safety in use.

[0021] (6) The utility model is provided with a photoelectric counter-shooting switch, which can automatically trigger the alignment system to further improve automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the content of the utility model easier to understand, the utility model is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein:

[0023] Figure 1 It is the system topology diagram of the utility model;

[0024] Figure 2 It is a simplified structural diagram of the utility model.

[0025] The reference numerals in the accompanying drawings are:

[0026] Trackside control cabinet 1, chassis 1-1, power box 1-2, industrial computer 1-3, switch 1-4, first wireless communication device 1-5, KVM 1-6, trackside detection device 2, vehicle number recognition module 2-1, axle counting detection module 2-2, proximity detection module 2-3, alignment detection module 2-4, tractor automatic control platform 3, automatic control unit 3-1, second wireless communication device 3-2, laser scanner 3-3. DETAILED DESCRIPTION

[0027] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] (Example 1)

[0029] like Figure 1 and Figure 2 The traction lathe wheel alignment system shown includes a trackside control cabinet 1, a trackside detection device 2 and a tractor automatic control platform 3, wherein the trackside detection device 2 and the tractor automatic control platform 3 are both connected to the trackside control cabinet 1 by signal, and the trackside detection device 2 is used to monitor the various position parameters of the train towed by the tractor in real time, and send them to the trackside control cabinet 1, and the trackside control cabinet 1 analyzes and processes the signals and sends them to the tractor automatic control platform 3, and then the tractor automatic control platform 3 controls the movement of the tractor, thereby driving the movement of the train, thereby completing the automatic alignment with the wheelless lathe.

[0030] Specifically, the trackside control cabinet 1 is installed on the side of the underfloor wheel lathe warehouse, including a chassis 1-1 and a power box 1-2 fixedly installed in the chassis 1-1, and an industrial computer 1-3, a switch 1-4, a first wireless communication device 1-5 and a KVM 1-6 electrically connected to the power box 1-2, wherein the industrial computer 1-3 and the first wireless communication device 1-5 are electrically connected to the switch 1-4. The trackside detection device 2 is installed at the track position of the underfloor wheel lathe warehouse, including a vehicle number recognition module 2-1, an axle counting detection module 2-2, a proximity detection module 2-3 and an alignment detection module 2-4 which are arranged in sequence along the direction of the train pulling the vehicle and are all connected to the industrial computer 1-3 signal. Among them, the vehicle number recognition module 2-1, the proximity detection module 2-3 and the alignment detection module 2-4 all use industrial cameras to obtain the corresponding position information by taking high-definition photos, thereby improving the accuracy of position detection. The axle counter detection module 2-2 uses a wheel sensor, model KYCX-1, and uses two magnetic steel signal sequences to identify the direction. The two magnetic steel sequences use only two types to represent the forward and backward movement of the train, but when the two consecutive magnetic steel signals belong to the same magnetic steel, it represents a reversal. Each reversal occurs once, and one of the magnetic steels is used to count the train cycles, so as to achieve axle counting on both sides of the train and improve the accuracy of the axle signal. The tractor automatic control platform 3 is connected to the tractor signal, including an automatic control unit 3-1 and a second wireless communication device 3-2 and a laser scanner 3-3, both of which are electrically connected to the automatic control unit 3-1, wherein the second wireless communication device 3-2 is connected to the first wireless communication device 3-1 by signal.

[0031] The vehicle number recognition module 2-1 takes a photo to obtain the train number and each car number. The proximity detection module 2-3 is installed at the trackside in front of the wheel turning position, takes a photo and sends it to the trackside control cabinet 1 to identify the approximate distance of the train wheel pairs in advance and send a signal to the tractor automatic control platform 3. The tractor automatic control platform 3 controls the tractor to slow down and then continue to move forward slowly for alignment. The alignment detection module 2-4 is installed at the trackside position opposite the wheel turning position, and transmits the real-time picture to the trackside control cabinet 1. The control cabinet 1 analyzes and obtains the actual distance between the wheel and the center position of the lathe. When the train passes through the wheel-free lathe, the vehicle number recognition module 2-1 records the train number and car number, the axle counting detection module 2-2 records the number of wheelsets passing through, and the proximity detection module 2-3 informs the train to slow down step by step in advance. The vehicle number recognition module 2-1 and the axle counting module 2-2 jointly analyze and obtain the real-time position of the wheelset that needs to be turned and repaired, thereby improving the alignment accuracy.

[0032] In order to improve safety, the utility model is also provided with a safety interlock control unit installed on the tractor and the wheel turning lathe, which realizes the braking of the wheel and improves the safety of use. The tractor automatic control platform 3 also includes a monitoring camera connected to the automatic control unit 3-1 signal, which monitors the traction road conditions of the tractor in real time and realizes the safe avoidance of the tractor.

[0033] In order to improve the level of automation, the vehicle number recognition module 2-1 of this embodiment is provided with a photoelectric beam switch at the front end located in the direction of the oncoming vehicle. The photoelectric beam switch is connected to the trackside control cabinet 1 signal and sends a signal when a train passes by, thereby automatically triggering the alignment system to start.

[0034] The operation process of this embodiment:

[0035] (1) After the tractor is connected to the train, the tractor train stops in front of the wheel-less lathe;

[0036] (2) After the tractor passes the photoelectric beam switch, the alignment system is automatically turned on, a wireless communication connection is established between the underfloor wheel lathe and the tractor, and the wheel pair number to be lathe-repaired is clicked on the operation interface of the tractor automatic control platform 3 to create an operation task;

[0037] (3) The operator adjusts the working mode to automatic positioning, and the intelligent positioning system starts working;

[0038] (4) The tractor first pulls the train at a relatively fast fixed speed to approach the lathe. The vehicle number recognition module 2-1 automatically recognizes the train number and the vehicle number and inputs them into the operation task. The axle counting detection module 2-2 automatically counts the axle of the train wheels. The approach detection module 2-3 detects that the tractor is approaching and sends a signal to control the tractor to slow down and move at a slower speed.

[0039] (5) The alignment detection modules 2-4 work synchronously and feed back the recognition results to the industrial computer 1-3. The operation interface displays the real-time information of the vehicle. The tractor adjusts the speed according to the wheel position and controls the train to stop accurately at the appropriate position.

[0040] (6) The wheel lathe confirms the position of the wheelset, and the safety interlock control unit sends a locking signal to suspend the tractor's traction capacity and release the tractor's brakes;

[0041] (7) The operator controls the wheel turning machine to perform the turning and repairing operation;

[0042] (8) After the turning and repair is completed, the locking signal of the turning machine is released, and the operator clicks the operation interface to continue the next round of automatic positioning;

[0043] (9) After all boring and repairing operations are completed, the operator will adjust the working mode to manual operation mode and operate the tractor to push the subway train out.

[0044] The utility model uses the trackside detection equipment to monitor the various position parameters of the towed train in real time, and sends them to the trackside control cabinet, which analyzes and processes the signals and sends them to the tractor automatic control platform, which then controls the tractor movement, thereby driving the train movement, thereby completing the automatic alignment with the wheel-free lathe, wherein the trackside detection equipment is provided with a proximity detection module and an alignment detection module, thereby achieving the initial positioning of the wheel pair to be repaired and the wheel-free lathe and then performing a secondary precise automatic alignment, and then sending signals to the trackside control cabinet and the tractor automatic control platform in turn to control the tractor to tow the train at a higher speed before the initial positioning and at a slower speed after the initial positioning, thereby saving the wheel turning operation time while ensuring the alignment accuracy and improving the wheel turning operation efficiency.

[0045] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A traction turning wheel alignment system, characterized in that: It includes a trackside control cabinet, trackside detection equipment and a tractor automatic control platform, both of which are connected to the trackside control cabinet signal. The trackside control cabinet is installed on the side of the underfloor wheel lathe warehouse and is suitable for receiving data information collected by the trackside detection equipment, and sending it to the tractor automatic control platform after analysis and judgment. The tractor automatic control platform is connected to the tractor signal and is suitable for controlling the tractor action. The trackside detection equipment is installed on the track position of the underfloor wheel lathe warehouse, including a car number recognition module, an axle counting detection module, a proximity detection module and an alignment detection module arranged in sequence along the direction of the train towing the vehicle. The car number recognition module is suitable for obtaining the train number and the number of each car, the axle counting detection module is suitable for obtaining the train axle position signal, the proximity detection module is suitable for obtaining the preliminary positioning position of the train, and the alignment detection module is suitable for obtaining the actual distance between the train wheel and the center position of the lathe.

2. The traction turning wheel alignment system according to claim 1, characterized in that: The vehicle number recognition module, the proximity detection module and the alignment detection module all use industrial cameras, and the industrial cameras are connected to the trackside control cabinet signals.

3. The traction turning wheel alignment system according to claim 1, characterized in that: The axle counter detection module adopts a train magnetic steel type wheel sensor, and the wheel sensor is connected to the trackside control cabinet signal.

4. The traction turning wheel alignment system according to claim 1, characterized in that: The trackside control cabinet includes a chassis and a power box fixedly installed in the chassis, and an industrial computer, a switch, a first wireless communication device and a KVM electrically connected to the power box. The trackside detection device is signal-connected to the industrial computer, and the industrial computer and the first wireless communication device are electrically connected to the switch.

5. The traction turning wheel alignment system according to claim 4, characterized in that: The tractor automatic control platform includes an automatic control unit, and a second wireless communication device and a laser scanner both electrically connected to the automatic control unit, and the second wireless communication device is signal-connected to the first wireless communication device.

6. The traction turning wheel alignment system according to claim 5, characterized in that: The tractor automatic control platform also includes a monitoring camera connected to the automatic control unit signal.

7. The traction turning wheel alignment system according to claim 1, characterized in that: It also includes a safety interlock control unit installed on the tractor and the underfloor wheel turning lathe.

8. The traction turning wheel alignment system according to claim 1, characterized in that: The vehicle number recognition module is provided with a photoelectric beam switch at the front end in the direction of the oncoming vehicle, and the photoelectric beam switch is connected to the trackside control cabinet signal.

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