Running device, system and method capable of passing through railway turnout

Abstract

The invention discloses a walking device and system capable of passing through a railway turnout and a walking method of the walking device and system, and belongs to the technical field of railway detection equipment. In order to solve the problems that an existing track inspection trolley is poor in trafficability in a turnout zone and prone to being clamped and derailed, a T-shaped layout structure is adopted, and stable passing through a harmful space of a turnout is achieved through cooperation of a longitudinal beam tensioning wheel set, a cross beam tensioning wheel set and a controllable shrinkage measuring wheel. According to the technical scheme, the device comprises a T-shaped frame composed of longitudinal beams and cross beams; the walking wheel and the guide wheel group are mounted on the frame; the measuring wheel and the spring guide rail are controlled by a ratchet mechanism; and a horizontal compensation wheel and a gauge compensation wheel. The method comprises four stages of normal walking, locking before entering a turnout, passing through the turnout and resetting. The vehicle body posture is stabilized through the tensioning wheel set, the position of the measuring wheel is locked through the ratchet mechanism, the technical problems of wheel collision, wheel sinking and rail climbing of a traditional detection vehicle in a turnout zone are effectively solved, and turnout detection efficiency and safety are remarkably improved.

Description

Technical Field

[0001] The present invention relates to a running device, system and method, in particular to a running device, system and running method that can pass through railway switches, belonging to the application field of railway track equipment. Background Art

[0002] Railway switches are key equipment in the railway track system, used to guide trains to turn from one track to another or to connect tracks at intersections. Their structures are complex and require high reliability and safety. A switch mainly consists of components such as switch rails, stock rails, frogs, guard rails, slide plates, and connecting rods. As one of the three weak sections of the track, switches frequently suffer from diseases. The main disease types include gauge and level overlimit, alignment and elevation defects, abnormal switch rail lowering value, and gauge overlimit in the frog throat area. Currently, the inspection method for switches mainly uses manual measurement. Manual inspection has a high labor intensity, low work efficiency, rough inspection data, and untimely feedback of inspection results. The level of informatization management is low, and at the same time, it requires a high professional quality of inspection personnel.

[0003] Currently, the inspection method for switches mainly uses manual measurement. Tools such as gauge rods, offset gauge rods, feeler gauges, and steel straightedges are used to check the geometric and structural parameters of the switch track. Manual inspection has a high labor intensity, low work efficiency, rough inspection data, and untimely feedback of inspection results. The level of informatization management is low, and at the same time, it requires a high professional quality of inspection personnel.

[0004] Currently, most of the running structures that can pass through switches adopt an "H" - type layout structure. During the running process, four running wheels contact the top surface of the rail. When there are unevenness in the track itself, this layout structure is prone to single running wheel suspension during the geometric measurement of the switch area track, resulting in distorted measurement of the rail track level and elevation data. In addition, the transverse distance between the running wheels of the "H" - type layout structure is fixed at a value smaller than the standard gauge, and it is prone to snake - like movement when passing through the switch area, resulting in inaccurate measurement of the alignment.

[0005] [[ID=...]] Summary of the Invention

[0006] ​In order to solve the technical problem that the existing hand - pushed track inspection trolley cannot effectively pass through the frog in the turnout area, the present invention proposes a traveling device that can pass through a single - turnout, that is, a T - shaped structure is selected as the layout structure of the whole vehicle, and by installing devices such as measuring wheels, guiding wheels, ratchets, and flexible connections, smooth passing through the turnout area is achieved.

[0007] A traveling device that can pass through a railway turnout, using a T - shaped structure as the layout structure of the whole vehicle, and by coordinately controlling the longitudinal beam tensioning wheel set, the cross - beam tensioning wheel set, and the controllable - contraction measuring wheel, ensuring that the device can smoothly pass through the harmful space of the railway turnout. Its characteristics are as follows:

[0008] The longitudinal beam and the cross - beam are rigidly connected to form a T - shaped main frame;

[0009] The longitudinal - beam tensioning wheel set fixed to the longitudinal beam and the cross - beam tensioning wheel set installed on the cross - beam are used to stabilize the body attitude when passing through the turnout;

[0010] The measuring wheel connected to the cross - beam through a spring guide rail is used for dynamically detecting the gauge;

[0011] The locking mechanism is used to control the locking and release of the measuring wheel;

[0012] The horizontal compensation wheel and the gauge compensation wheel installed on the cross - beam or the longitudinal beam are used to compensate for the track deviation.

[0013] Preferably: the longitudinal - beam traveling wheels installed at the bottom of the longitudinal beam and the traveling wheels installed at the bottom of the cross - beam are used to carry the weight of the device and move on the track;

[0014] The longitudinal - beam guiding wheel set installed at the end of the longitudinal beam is used to guide the traveling direction;

[0015] The locking mechanism composed of a wrench, a locking wheel shaft, a steel wire rope, and a ratchet is used to control the locking and release of the measuring wheel;

[0016] The traveling wheels are fixedly connected to the longitudinal beam and the cross - beam, the guiding wheel set is connected to the end of the longitudinal beam, the tensioning wheel sets are respectively fixedly connected to the longitudinal beam and the cross - beam, the measuring wheel is connected to the cross - beam through a spring guide rail, the steel wire rope of the locking mechanism is connected to the locking wheel shaft and the spring guide rail, and the compensation wheels are connected to the cross - beam or the longitudinal beam.

[0017] Preferably: the longitudinal beam and the cross - beam are bolt - connected through a flange plate; a laser indicator for positioning the stock rail is provided outside the cross - beam tensioning wheel set. A laser indicator for positioning the stock rail is provided outside the cross - beam tensioning wheel set.

[0018] Preferably, when the cross beam is on one side of the stock rail, the cross beam tensioning wheel set presses the stock rail by manually tightening the bolts. After locking, the tensioning wheel set is in close contact with the outer rail head of the stock rail to guide the running direction of the running device; when the longitudinal beam is on one side of the stock rail, the longitudinal beam tensioning wheel set presses the stock rail by manually tightening the bolts. After locking, the tensioning wheel set is in close contact with the outer rail head of the stock rail to guide the running direction of the running device.

[0019] Preferably, the horizontal compensation wheel is used to compensate for the longitudinal track inclination, the gauge compensation wheel detects the lateral gauge deviation, and the measuring wheel is responsible for dynamic gauge tracking. The three groups of data are transmitted to the control unit through the CAN bus, and the three groups of data are fused by the Kalman filter algorithm to output the comprehensive gauge value; the CAN bus transmission adopts the CAN2.0B protocol, the transmission rate is 250 kbps, and the data update frequency is 1 kHz.

[0020] Preferably, the longitudinal beam running wheels 2 are installed at the bottom of the longitudinal beam 4, and the running wheels 12 are installed at the bottom of the cross beam 7; the longitudinal beam is made of a rectangular steel pipe with a size of 60×80 mm and a length of 1200 mm; the cross beam 7 is made of a rectangular steel pipe with a size of 50×70 mm and a length of 800 mm. The two are connected by flange bolts, and the overall structural stiffness is ≥500 N / mm.

[0021] The present invention also discloses a running method that can pass through railway turnouts, which is characterized in that it is implemented by a running device with a T-shaped layout, and includes the following steps:

[0022] (1) Normal running stage:

[0023] The moving power is provided by the rolling of the longitudinal beam running wheels and the running wheels along the track;

[0024] The running direction is guided by the longitudinal beam guide wheel set;

[0025] The measuring wheel connected by the spring guide rail dynamically adapts to the gauge change;

[0026] (2) Preparation stage before entering the turnout's adverse space:

[0027] Manually lock the longitudinal beam tensioning wheel set or the cross beam tensioning wheel set on one side of the stock rail; make it close to the stock rail to stabilize the vehicle body posture;

[0028] Drive the ratchet by a wrench to tighten the steel wire rope, so that the locking wheel shaft fixes the positions of the spring guide rail and the measuring wheel;

[0029] (3) Stage of passing through the turnout's adverse space:

[0030] Maintain a stable running posture under the combined action of the tensioning wheel set and the locked measuring wheel;

[0031] Compensate for the gauge and horizontal deviation in real time through the horizontal compensation wheel and the gauge compensation wheel;

[0032] (4) Reset stage after passing through the turnout:

[0033] The unlocking ratchet causes the measuring wheel to automatically reset;

[0034] Release the tensioning wheel set to restore the free state.

[0035] Preferably, the locking sequence is as follows: first, the crossbeam tensioning wheel set, then the longitudinal beam tensioning wheel set, and finally the measuring wheel; the unlocking sequence is the opposite; the basic rail is positioned by the laser indicator outside the crossbeam tensioning wheel set.

[0036] The present invention also discloses a railway turnout which is a railway track system, and this system includes the running device that can pass through the railway turnout as described above.

[0037] Beneficial effects

[0038] Through the synergistic effect of the tensioning wheel set and the controllable measuring wheel, the problems of jamming and derailment of the traditional inspection trolley in the turnout area are effectively avoided.

[0039] Adopt a mechanical locking mechanism (ratchet + steel wire rope), which is simple and reliable in operation and meets the on-site operation requirements.

[0040] The measuring wheel can automatically reset to ensure the reliability, continuity and accuracy of gauge detection.

[0041] Use the method of tensioning wheel + controllable retractable measuring wheel to ensure that the "T"-shaped layout trolley can smoothly pass through the harmful space in the turnout area. The "T"-shaped layout trolley can pass through the turnout area more conveniently and quickly, avoiding the disconnection of the track inspection data in the turnout area. Brief description of the drawings

[0042] Figure 1 It is a schematic structural diagram of the present invention.

[0043] Among them, 1 is the longitudinal beam tensioning wheel set; 2 is the longitudinal beam running wheel; 3 is the longitudinal beam guiding wheel set; 4 is the longitudinal beam; 5 is the horizontal compensation wheel; 6 is the gauge compensation wheel; 7 is the crossbeam; 8 is the wrench; 9 is the locking wheel shaft; 10 is the spring guide rail; 11 is the measuring wheel; 12 is the running wheel; 13 is the crossbeam tensioning wheel set; 14 is the steel wire rope; 15 is the ratchet. Specific embodiments

[0044] Embodiment 1

[0045] A running device that can pass through a railway turnout includes a longitudinal beam tensioning wheel set, longitudinal beam running wheels, longitudinal beam guiding wheel sets, longitudinal beams, horizontal compensation wheels, gauge compensation wheels, crossbeams, wrenches, locking wheel shafts, spring guide rails, measuring wheels, running wheels, crossbeam tensioning wheel sets, steel wire ropes, and ratchets. Among them, the longitudinal beam and the crossbeam are in a "T"-shaped layout, forming the main frame of the running device to support all components, ensuring structural stability and adapting to the complex track layout in the turnout section.

[0046] Running wheels (longitudinal beam running wheels 2, running wheels 12): The longitudinal beam running wheel 2 is installed at the bottom of the longitudinal beam 4, and the running wheel 12 is installed at the bottom of the cross beam 7. These running wheels are used to carry the weight of the running device and move on the track, providing the basic walking ability. The longitudinal beam 4 is made of a 60×80 mm rectangular steel pipe with a length of 1200 mm; the cross beam 7 is made of a 50×70 mm rectangular steel pipe with a length of 800 mm. The two are connected by flange bolts, and the overall structural stiffness is ≥500 N / mm.

[0047] The guide wheel set (longitudinal beam guide wheel set 3) is installed at the beam end of the longitudinal beam 4 and is used to guide the running device to travel along the track direction to prevent derailment or deviation.

[0048] Tensioning wheel sets (longitudinal beam tensioning wheel set 1, cross beam tensioning wheel set 13): The longitudinal beam tensioning wheel set 1 is fixed to the longitudinal beam 4, and the cross beam tensioning wheel set 13 is installed on the cross beam 7. When passing through the turnout, the tensioning wheel on one side of the stock rail is manually locked to stabilize the body attitude and prevent rollover.

[0049] The cross beam tensioning wheel set presses the stock rail by manually tightening the bolts. After locking, the rear wheel set fits tightly with the track; a laser indicator is provided outside the cross beam tensioning wheel set 13. When the red light coincides with the outer edge of the track, it is the correct positioning position of the stock rail.

[0050] The measuring wheel 11 and the spring guide 10: They are fixedly connected by bolts, and the spring guide 10 is telescopic; before passing through the frog of the turnout, the position is locked by a ratchet mechanism to avoid rebound; dynamically adapt to the gauge change; the spring guide 10 is made of a stainless steel spiral spring.

[0051] The ratchet mechanism (wrench 8, locking wheel shaft 9, steel wire rope 14, ratchet 15): The wrench 8 drives the ratchet 15 to rotate, drives the locking wheel shaft 9 to tighten the steel wire rope 14, and controls the telescoping of the spring guide 10. According to the manual control of the contraction and reset of the measuring wheel 11, it is ensured that the detection state is automatically restored after successfully passing through the frog. A preloaded spring is built into the spring guide 10 to provide the reset power.

[0052] Compensation wheels (horizontal compensation wheel 5, gauge compensation wheel 6): They are installed at the auxiliary positions of the cross beam 7 or the longitudinal beam 4. The track horizontal and gauge deviations are compensated by the compensation wheels to further ensure the smoothness and accuracy of the track geometric data during the running process; the horizontal compensation wheel 5 is used to correct the longitudinal inclination of the track, and the gauge compensation wheel 6 and the measuring wheel 11 cooperate to control the lateral gauge, and the data of the three are linked.

[0053] The horizontal compensation wheel 5 is used to detect the longitudinal track inclination, the gauge compensation wheel 6 detects the lateral gauge deviation, and the measuring wheel 11 is responsible for dynamic gauge tracking. The three groups of data are transmitted to the control unit through the CAN bus. The three groups of data are fused by the Kalman filtering algorithm to output the comprehensive gauge deviation value. The CAN bus transmission adopts the CAN2.0B protocol, with a transmission rate of 250 kbps and a data update frequency of 1 kHz.

[0054] Embodiment 2

[0055] The running method of the present invention is based on the running method with a "T" layout. By coordinating the control of the longitudinal beam tensioning wheel set 1, the cross beam tensioning wheel set 13, and the controllable contraction measuring wheel 11, it is ensured that the device can smoothly pass through the harmful space of the railway turnout. The specific steps are as follows:

[0056] (1) Normal running stage

[0057] The longitudinal beam running wheels 2 and the running wheels 12 roll along the track to provide the basic moving ability.

[0058] The longitudinal beam guide wheel set 3 guides the direction to prevent deviation or derailment.

[0059] Under the action of the spring guide rail 10, the measuring wheel 11 dynamically adapts to the gauge change to ensure smooth running.

[0060] (2) Preparation before entering the harmful space of the turnout

[0061] Manually lock the tensioning wheel set:

[0062] The operator manually adjusts the cross beam tensioning wheel set 13 to make it close to the stock rail to prevent the running device from laterally deviating. The cross beam tensioning wheel set 13 drives the clamping mechanism by manually rotating the bolt to make the tensioning wheel closely fit with the stock rail. After locking, the lateral supporting force provided is ≥100 N to prevent the car body from tilting. The locking sequence should be: ① the cross beam tensioning wheel set 13 → ② the longitudinal beam tensioning wheel set 1 → ③ the measuring wheel 11; the unlocking sequence is the opposite. After unlocking the ratchet, the spring guide rail completes the reset within 1.5 ± 0.3 seconds, and the repeatability accuracy of the reset position is ±0.2 mm.

[0063] The longitudinal beam tensioning wheel set 1 synchronously applies tension to stabilize the car body attitude.

[0064] Lock the measuring wheel 11:

[0065] Rotate the wrench 8 to drive the ratchet 15 to drive the locking wheel shaft 9 to tighten the steel wire rope 14, so that the spring guide rail 10 and the measuring wheel 11 maintain a fixed position to avoid rebound or jamming.

[0066] (3) Passing through the harmful space of the turnout

[0067] After the operator observes the switch mark (an RFID reader is set at the front end of the longitudinal beam to identify the frog positioning tag), the advancement stops at a distance of 0.2 m from the obtuse angle. The tensioning wheel sets (the cross beam 7 first and then the longitudinal beam 4) and the measuring wheel 11 are locked in sequence. After confirming the locked state, it passes through at a uniform speed and is immediately unlocked after passing through. Under the combined action of the tensioning wheel sets and the locked measuring wheel, the running gear maintains a stable posture, avoiding bumps or derailment caused by track gaps.

[0068] The horizontal compensation wheel 5 and the gauge compensation wheel 6 assist in adjustment to further reduce vibration and deviation.

[0069] (4)Reset after passing through the switch.

[0070] The ratchet 15 is unlocked, the steel wire rope 14 becomes slack, and the spring guide 10 pushes the measuring wheel 11 to automatically reset, restoring the dynamic detection function. The spring guide 10 is made of a stainless steel spiral spring and is rigidly connected to the measuring wheel 11 by bolts. When the gauge changes, the spring guide compresses or extends, keeping the measuring wheel always in contact with the track; before passing through the switch, the ratchet 15 locks the steel wire rope 14 to fix the length of the spring guide.

[0071] The cross beam tensioning wheel set 13 is loosened to restore its free state, and the running gear continues to travel normally.

[0072] After testing, the device can stably pass through standard switches such as No. 9, No. 12, and No. 18. The passing speed can reach 1 m / s, and the gauge detection error < 0.3 mm.

[0073] The comparative test shows that the passing rate of the traditional trolley is only 65%, while the passing rate of this solution reaches 98%, and the integrity rate of the detection data increases from 72% to 95%.

[0074] The cross beam, longitudinal beam, and running wheels of the present invention ensure that the running gear can move on the track. The longitudinal beam guide wheel set is used to guide the direction of the running gear, and the longitudinal beam guide wheels are installed at the ends of the longitudinal beam; the spring guide and the measuring wheel are fixedly connected by bolts to ensure that when the track gauge changes, the running gear can move smoothly; the longitudinal beam tensioning wheel set is fixedly connected to the longitudinal beam, and for the cross beam tensioning wheel set, when passing through the switch section, the tensioning wheel on one side of the stock rail can be manually locked to ensure the running posture of the vehicle body. When the running gear passes through the obtuse angle of the switch, by rotating the wrench, the ratchet drives the locking wheel shaft to tighten the steel wire rope, preventing the spring guide and the measuring wheel from rebounding, ensuring that the running gear can smoothly pass through the obtuse angle area of the switch. After passing through the obtuse angle area, by unlocking the ratchet, the measuring wheel automatically resets, and the running gear can smoothly pass through the switch area.

[0075] The present invention has made a technological innovation aiming at the problem that the existing track inspection trolley cannot effectively pass through the turnout. By using the method of a tension wheel + a ratchet controllable contraction measuring wheel, it ensures that the "T"-shaped layout trolley can smoothly pass through the adverse space of the turnout area, guarantees the reliability and continuity of the track geometry measurement in the turnout area, and prevents the occurrence of wheel collision, wheel sinking, and rail climbing during the measurement process of the traditional track inspection trolley.

[0076] The present invention can be used as a carrier for turnout inspection equipment, and well solves the problem that the existing track inspection trolley cannot detect the track state in the turnout area, and guarantees the rapid detection of the track geometric parameters and structural parameters in the turnout area. The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A running device that can pass through railway switches, adopting a T-shaped structure as the layout structure of the whole vehicle. By coordinately controlling the longitudinal beam tensioning wheel set, the cross beam tensioning wheel set and the controllable shrinkage measuring wheel, it ensures that the device can smoothly pass through the harmful space of the railway switch. The characteristics are as follows: The longitudinal beam and the cross beam are rigidly connected to form a T-shaped main frame; The longitudinal beam tensioning wheel set fixed on the longitudinal beam and the cross beam tensioning wheel set installed on the cross beam are used to stabilize the vehicle body posture when passing through the switch; The measuring wheel connected to the cross beam through a spring guide rail is used to dynamically detect the gauge; The locking mechanism is used to control the locking and release of the measuring wheel; The horizontal compensation wheel and the gauge compensation wheel installed on the cross beam or the longitudinal beam are used to compensate for the track deviation.

2. The traveling device capable of passing through a railway switch according to claim 1, characterized in that: The longitudinal beam running wheels installed at the bottom of the longitudinal beam and the running wheels installed at the bottom of the cross beam are used to carry the weight of the device and move on the track; The longitudinal beam guide wheel set installed at the end of the longitudinal beam is used to guide the traveling direction; The locking mechanism composed of a wrench, a locking wheel shaft, a steel wire rope and a ratchet is used to control the locking and release of the measuring wheel; The running wheels are fixedly connected to the longitudinal beam and the cross beam, the guide wheel set is connected to the end of the longitudinal beam, the tensioning wheel sets are respectively fixedly connected to the longitudinal beam and the cross beam, the measuring wheel is connected to the cross beam through a spring guide rail, the steel wire rope of the locking mechanism is connected to the locking wheel shaft and the spring guide rail, and the compensation wheel is connected to the cross beam or the longitudinal beam.

3. The traveling device capable of passing through a railway switch according to claim 1, characterized in that: The longitudinal beam and the cross beam are connected by flange bolts; a laser indicator for positioning the stock rail is provided outside the cross beam tensioning wheel set; a laser indicator for positioning the stock rail is provided outside the cross beam tensioning wheel set.

4. The running device capable of passing through a railway switch according to claim 1, characterized in that: The cross beam tensioning wheel set presses the stock rail tightly by manually tightening the bolts. After locking, the wheel set is in close contact with the stock rail track; a laser indicator is provided outside the cross beam tensioning wheel set. When the red light coincides with the outer edge of the track, it is the correct positioning position of the stock rail.

5. The traveling device capable of passing through a railway switch according to claim 1, characterized in that: The horizontal compensation wheel is used to detect the longitudinal track inclination, the gauge compensation wheel detects the lateral gauge deviation, the measuring wheel is responsible for dynamic gauge tracking. The three groups of data are transmitted to the control unit through the CAN bus. The three groups of data are fused by the Kalman filter algorithm to output the comprehensive gauge deviation value; the CAN bus transmission adopts the CAN2.0B protocol, the transmission rate is 250 kbps, and the data update frequency is 100 Hz.

6. The traveling device capable of passing through a railway switch according to claim 2, characterized in that: The longitudinal beam running wheels are installed at the bottom of the longitudinal beam, and the running wheels are installed at the bottom of the cross beam; the longitudinal beam is made of a 60×80 mm rectangular steel pipe with a length of 1200 mm; the cross beam is made of a 50×70 mm rectangular steel pipe with a length of 800 mm. The two are connected by flange bolts, and the overall structural stiffness is ≥500 N / mm.

7. A running method that can pass through a railway switch, characterized in that, The implementation of the running device with a T-shaped layout includes the following steps: (1) Normal running stage: The moving power is provided by the rolling of the longitudinal beam running wheels and the running wheels along the track; The traveling direction is guided by the longitudinal beam guide wheel set; The measuring wheel connected by the spring guide rail dynamically adapts to the gauge change; (2) Preparation stage before entering the harmful space of the switch: Manually lock the cross beam tensioning wheel set to make it close to the stock rail; Synchronously lock the longitudinal beam tensioning wheel set to stabilize the vehicle body posture; Drive the ratchet by the wrench to tighten the steel wire rope, so that the locking wheel shaft fixes the positions of the spring guide rail and the measuring wheel; (3) Stage of passing through the harmful space of the switch: Maintain a stable running attitude under the combined action of the tension wheel set and the locking measurement wheel; Real-time compensate for track deviation through the horizontal compensation wheel and the gauge compensation wheel; (4) Through the reset stage after the turnout: Unlock the ratchet to automatically reset the measurement wheel; Release the tension wheel set to restore the free state.

8. The running method according to claim 7, characterized in that, The locking sequence in step (2) is as follows: first, the crossbeam tension wheel set, then the longitudinal beam tension wheel set, and finally the measurement wheel; the unlocking sequence is the opposite; locate the stock rail through the laser indicator on the outside of the crossbeam tension wheel set.

9. The running method according to claim 7, characterized in that, It also includes a safety monitoring step: monitor the deformation of the longitudinal beam through strain gauges and trigger an alarm when the threshold is exceeded.

10. A railway turnout is a railway track system, and the system includes the running device that can pass through the railway turnout described in claim 1.

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