Machine and method for rehabilitating a track

The present invention relates to a working machine device for a track including a machine device frame supported on a chassis. The mechanical device frame includes a front end side frame portion and a rear end side frame portion in a working direction, and the front end side frame portion and the rear end side frame portion are connected to each other by a joint joint portion. The track work machine includes a reference system for controlling at least one work unit located on the machine frame. The present invention also relates to a method for detecting orbital measurements.

[0002] From GB2268021, a mechanical device for cleaning (cleaning) a ballast (gravel or crushed stone laid under a railroad pillow) is known. The mechanical device for rose screening includes two frame portions, and the two frame portions are movably connected to each other in an articulated manner. The laser reference system functions to be able to detect the longitudinal tilt of the orbit in the region of the distal frame portion. According to the measurement, the vertical position of the work unit placed on the second frame portion can be controlled. A laser transmitter is provided for this purpose, and the laser transmitter is firmly held in a horizontal position. A laser receiver is arranged on the front chassis of the front frame portion on the track. The laser receiver functions so as to be able to detect the inclination of the tip side frame portion in the longitudinal direction by referring to the horizontal reference plane of the laser.

[0003] The longitudinal tilt value calculated by the algorithm is time-delayed (that is, time-delayed) and further transmitted to a laser receiver provided in the cleaning chain of the second frame portion. Will be done. This makes it possible to control the vertical position of the cleaning chain.

[0004] Further, mechanical devices for rose screening have become known from GB2268529. In the mechanical device for bulk screening, the longitudinal inclination meter (longitudinal inclination measuring instrument) and the transverse inclination meter (transverse tilt measuring instrument) are fixed to the first frame portion and the second frame portion. There is. The longitudinal inclination of the trajectory measured in the region of the first frame portion is stored as a target value and transmitted in a time-delayed manner so that the vertical position of the cleaning chain can be controlled. In this case, the actual tilt detected by the longitudinal tilt meter of the second frame portion must be taken into account. To control the vertical position of the cleaning chain, a tension meter (in other words, potentiometer or potentiometer) of the tensioned cable is placed between the second frame portion and the cleaning chain. It is provided.

PROBLEM TO BE SOLVED: To solve a problem of the present invention An object of the present invention is for a specific type of track work in which a track position destroyed by an operation of a work unit can be restored relatively accurately by a simple means. It provides a mechanical device.

[Means for Solving the Problems] This object is achieved by the orbital working machine device according to the present invention described at the beginning. In the track work machine device, the reference system arranged on the tip side frame portion is a reference line (reference line) extending along the longitudinal direction of the track work machine device between two chassis. And a measurement axle (axle) configured to roll on the track. The measuring axle includes a measuring device that detects relative motion of the mechanical device in the transverse direction between the reference line and the measuring axle. Further, in the work machine device for the track, an angle measuring device for detecting an actual frame angle surrounded by both frame portions is provided.

[0007] According to this embodiment, a relatively inexpensive and small structure can measure the actual orbital position immediately before the destruction and reproduce the detected actual orbital position, whereby the actual orbital position can be reproduced. The work unit can be controlled by the angular relationship of the rear end side frame portion with respect to the front end side frame portion firmly positioned at the position. In order to do so, one is from the recognition that the theoretical target position of the rear end side frame portion can be easily calculated by the trajectory formed from the measured orbital value and corresponding to the actual orbital position. Start. Since the actual position of the rear end side frame portion can be found by the angle measuring device, the displacement value required to control the working unit can be calculated easily and reliably by subtraction.

[0008] The evolutionary effects of the present invention will become apparent from the dependent claims and drawings.

The invention of the present application is described in detail below with respect to the embodiments shown in the drawings.

[Embodiment of the Invention] The mechanical device 1 shown in FIG. 1 includes a mechanical device frame 3 supported by a chassis 2 restrained by rails. The mechanical device frame 3 includes a front end side frame portion 5 with respect to the operating direction (arrow 4) and a rear end side frame portion 7 connected to the front end side frame portion 5 by a joint joint portion 6. Various work units 8 in the shape of a cleaning chain 9 and a track lift device 10 are provided in the rear end side frame portion 7. The work unit 8 can be adjusted with respect to the rear end side frame portion 7 by the device 11. The ballast picked up from the trackbed by the endless cleaning chain 9 is transported by the conveyor belt 12 of the sieving device (not shown for simplification) to the sieving wagon connected to the rear end frame portion 7. , There it is cleaned and discharged by the conveyor belt device 13 onto the orbit 14, the exposed Earth shape, to restore the trackbed.

[0011] A reference system 15 for detecting a defect in the lateral position of the actual track position is arranged in the front end side frame portion 5. The reference system 15 includes a reference line 16, a measuring axle (axle) 17 configured to roll on track 14, and a measuring device 18 connected to the axle 17. The reference line 16 is formed of a steel chord that extends along the longitudinal direction of the track 14 and is centered with respect to the transverse direction of the track 14. The measuring device 18 is a linear potentiometer (linear). It has a potentiometer). The linear potentiometer is displaced along the transverse direction of the mechanical device 1 so as to be able to detect the relative displacement between the axle 17 for measurement and the reference line 16. The axle 17 for measurement is attached to the front end side frame portion 5, and is configured to roll on the track 14 by a roller 19 with a flange. The axle 17 for measurement is pressed by a drive device (not shown) along the transverse direction of the mechanical device 1 to one of the two rails forming the track 14. Thereby, the measuring axle 17 can accurately follow the lateral course of the track 14 while eliminating any gauge play. An odometer (mileage meter) 20 for detecting the distance traveled by the mechanical device 1 is provided. The angle measuring device 21 is provided in the area of the joint joint 6. The angle measuring device 21 is surrounded by two frame portions, a front end side frame portion 5 and a rear end side frame portion 7, with respect to a plane extending parallel to or horizontally extending with respect to the point where the wheel contacts the chassis 2. The actual frame angle β (Fig. 2) can be detected. If it is desired to detect the vertical position of the orbit at the same time as detecting the lateral position of the orbit, the vertical plane is further surrounded by two frame portions, the front end side frame portion 5 and the rear end side frame portion 7. It is necessary to provide an angle measuring device 21 for detecting the apex angle.

The coordinate system explicitly shown in FIG. 2 shows the orbital distance x detected by the odometer 20 of mechanical device 1 on the x-axis. On the other hand, the y-axis shows the deviation (straight line defect) of the lateral position of the locus 22 representing the actual orbital position. From the versine f measured at the tip side frame portion 5 by the measuring device 18 of the reference system 15, it is possible to estimate the locus 22 of the orbit 14 in relation to the polygonal curve 23 indicated by the alternate long and short dash line. ing.

[0013] The distance between the pivot axes of the bogey (turning bogie) between the two front chassis 2 that functions to support the front end side frame portion 5 is 12 meters. The axle 17 for measurement is provided in the center between the two chassis 2. The versine measurements are then performed at 6 meter intervals (resulting in a polygon length of 6 meters). The distance between the pivot axes of the bogey (turning bogie) between the two rear chassis 2 supporting the rear end side frame portion 7 is 24 meters. Therefore, the expansion of the corresponding mathematical formula for determining the control value of the working unit 8 can be fairly simplified. Before starting the operation of the work, the length of the track corresponding to the length of one mechanical device (36 meters) gradually reaching the work site should have already been surveyed. As a result, the locus 22 (Fig. 2) can be obtained from the five versines f resulting from the survey. Due to the above-mentioned shape dimension (geometry), the joint joint portion 6 of the front end side frame portion 5 and the rear end side frame portion 7 has a locus 22 y.₃ Accurately positioned to, the pivot axis 24 of the anterior bogey of the mechanical frame 3 is y₅ Positioned to. The pivot axis of the rear bogey of the rearmost frame portion 7 is indicated by reference numeral 25. The actual frame angle surrounded by the two frame portions of the front end side frame portion 5 and the rear end side frame portion 7 and measured by the angle measuring device 21 is indicated by β. Gradient (k₂ The target frame angle surrounded by the theoretical target positions of the rear end side frame part 7 and the front end side frame part 5 given in the form of) is α.₂ Indicated by.

As shown in FIG. 2, while the mechanical device 1 is moving forward and working, the versine f.₁ , F₂ , F₃ Are recorded continuously at 6 meter intervals with the help of reference system 15. As soon as a total of five versines f are known within the spacing of the mechanical frame 3, the locus 22 can be estimated based on the polygonal curve 23. The position of the mechanical device 1 is calculated in the locus 22 and the joint joint 6 is y.₃ Is accurately positioned. Since the tip side frame portion 5 is always positioned at the actual trajectory position, not only the pivot axis 24 of the anterior bogey but also the joint joint 6 is positioned on the trajectory 22. The length of the rear end side frame portion 7 is also a known dimension. From these given data, the theoretical target position (indicated by the dotted line 26) of the trailing frame portion 7 can be calculated fairly easily. At the target position, the pivot axis 25 of the rear bogey must be located on the locus 22.

[0015] From the theoretical target position of the rear end side frame portion 7, it is possible to determine the target frame angle Δα surrounded by the front end side frame portion 5 which is approximately specified in the shape of the gradient (k). .. The actual frame angle β determined by the angle measuring device 21 is approximately specified as the gradient Δy / Δx. Misalignment or positional defects of the rear-end frame portion 7 with respect to the theoretical target position can be caused by pulling between the actual frame angle β and the target frame angle Δα, or by the actual rear-end frame portion 7. Gradient (k₁ ) And the target gradient (k) of the rear end side frame part 7.₂ ), It can be specified. For example, the lateral deviation of the rear bogey on the pivot axis 25 from the target position is then easily found by multiplying the gradient difference by the length of mechanical device 1. The rear end frame portion 7 is consolidated until the corresponding actuation of the drive unit 11 positions the work unit 8 at the target position (corresponding to the actual position when it was present before the work unit 8 was actuated). ), And the actual orbital position measured at the tip side frame part 5 is restored.

[0016] The formula for calculation will be described in more detail. The following equation applies to the y value of locus 22.

[0017] y₁ = 2 f₁y₂ = 2 (2f₁ + f₂) y₃ = 2 (3f₁ + 2f₂ + f₃ ) y₄ = 2 (4f₁ + 3f₂ + 2f₃ + f₄ ) y₅ = 2 (5f₁ + 4f₂ + 3f₃ + 2f₄ + f₅ ) [0018] For the gradient difference Δk = Δy / Δx, the following equation applies (when the new versine is measured accurately at 6 meters).

[0019] Δk (Δα) = k₂(α₂ ) -k₁(α₁ ) = (y₃ / 2s)-(y₅ -y₃ ) / S = (3y₃ -2y₅ ) / 2s [0020] Here, s is the length of the front end side frame portion 5. 2s is the length of the rear end side frame portion 7.

[0021] While moving forward between the two measured versines f, the following equation is used for interpolation (x = distance from 0 to 6 meters, respectively).

[0022] y'₃ = y₃ + 2x (y₄ -y₃ ) / Sy'₅ = 2 (5f)₁ + 4f₂ + 3f₃ + 2f₄ + f'₅ (x)) Δk = (3y'₃ -2y'₅ ) / 2s [0023] In order to obtain a gradient independent of the unit, for example, by using the same unit in inches (in) [meter (m), etc.], the versine, the chord material, and the position are calculated by the above formula. Must be put in.

[0024] FIG. 3 further shows a mechanical device 1 according to another embodiment. Mechanical device 1 is suitable for regenerating the orbit. For simplicity, members having the same function are indicated by the same reference numerals as in the examples shown in FIG. Similarly, the mechanical device frame 3 is composed of two parts, a front end side frame portion 5 and a rear end side frame portion 7. The front end side frame portion 5 is connected to the rear end side frame portion 7 by a joint joint portion 6. The tip-side frame portion 5 is equipped with a reference system 15, a reference line 16, and an axle 17 for measurement so that the lateral position of the track 14 can be determined. The angle measuring device 21 is provided at the joint joint 6. The rear end of the rear end side frame portion 7 is ballast leveled by a chassis 27 with a caterpillar. bed: or ballast track) 28 supported. The work unit 8 is provided in the form of a vertical and transversely adjustable ground leveling device 29 and a device 34 for laying new sleepers 30. In addition, device 31 serves to pick up the old sleepers 32. In order to restore the track position, the drive device 33 is operated according to the control value determined by the assistance of the reference system 15 and the angle measuring device 21, whereby the chassis 27 with the caterpillar can be steered. This is because the work unit 8 can be automatically centered along with the steering of the chassis 27 with the caterpillar.

The angle measuring device 21, schematically shown and magnified in FIG. 4, comprises a tension meter 35 for tensioned cables. The tension meter 35 of the tensioned cable is located in the area of the articulation joint 6 and is connected to the front end frame portion 5 and the rear end side frame portion 7, whereby the actual frame enclosed with respect to the horizontal plane. The angle (β) can be detected. The tension meter 36 of the tensioned cable extends vertically to connect the front end frame portion 5 and the rear end side frame portion 7 to each other. The tension meter 36 of the tensioned cable is provided to connect the twists of the two frames of the front end side frame portion 5 and the rear end side frame portion 7 with respect to each other.

[0026] As another embodiment, of course, the reference line 16 may be formed as a laser beam. Further, instead of the joint joint portion 6, a coupler of a normal freight car can be used to connect the two frame portions of the front end side frame portion 5 and the rear end side frame portion 7.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a track work for cleaning a ballast track bed, having a reference system for controlling a work unit that determines lateral defects in the track. It is a simplified side view of a mechanical device.

FIG. 2 shows a coordinate system with a locus formed by a versine.

FIG. 3 shows other track working machinery suitable for track regeneration.

FIG. 4 shows a simplified schematic diagram of an angle measuring device.

[Code description] 1 Mechanical device 2 Chassis 3 Mechanical device frame 5 Tip side frame part 6 Joint joint part 7 Rear end side frame part 8 Work unit 9 Cleaning chain 10 Track lift device 11 Drive device 12 Conveyor belt 13 Conveyor belt device 14 Orbit 15 Reference system 16 Reference line 17 Axle for measurement 18 Measuring device 19 Flange roller 20 Odometer 21 Angle measuring device 22 Trajectory 23 Polygonal curve 24 Forward bogie pivot axis 25 Rear bogie pivot axis 26 Point line 27 Caterpillar Chassis with 28 Sloped Ballas Roadbed 29 Ground leveling device 30 Sleepers 31 Device 32 Sleepers 33 Drive 35 Cable potentiometer 36 Cable potentiometer